Skip to main content

The Order Rickettsiales

  • Reference work entry
The Prokaryotes

Introduction

Rickettsiae are genetically related α-Proteobacteria with fascinating obligately intracellular lifestyles usually involving alternation between vertebrate and invertebrate hosts. These feats are accomplished with small, evolutionarily selected genomes. The agents classified as Rickettsia, Orientia, Ehrlichia, Anaplasma, Wolbachia and Neorickettsia cause diseases (such as epidemic louse-borne typhus fever, Rocky Mountain spotted fever, scrub typhus, human ehrlichioses, and bovine anaplasmosis) that have repeatedly altered the course of history (Zinsser, 1935), unexpectedly kill previously healthy tick-exposed persons, occur as highly prevalent endemic febrile illness, and are veterinary pathogens of major economic importance.

Although mostly known as pathogens transmitted by hematophagous ticks and insects, some of the Rickettsiales are insect endosymbionts (Wolbachia) that have evolved dramatic abilities to manipulate their host populations, and others (Neorickettsia)...

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 700.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Literature Cited

  • Aguero-Rosenfeld, M. E., H. W. Horowitz, G. P. Wormser, D. F. McKenna, J. Nowakowski, J. Munoz, and J. S. Dumler. 1996 Human granulocytic ehrlichiosis: A case series from a medical center in New York State Ann. Intern. Med. 125 904–908

    PubMed  CAS  Google Scholar 

  • Allred, D. R., T. C. McGuire, G. H. Palmer, S. R. Leib, T. M. Harkins, T. F. McElwain, and A. F. Barbet. 1990 Molecular basis for surface antigen size polymorphisms and conservation of a neutralization-sensitive epitope in Anaplasma marginale Proc. Natl. Acad. Sci. USA 87 3220–3224

    Article  PubMed  CAS  Google Scholar 

  • Alleman, A. R., S. M. Kamper, N. Viseshakul, and A. F. Barbet. 1993 Analysis of the Anaplasma marginale genome by pulsed-field electrophoresis J. Gen. Microbiol. 139 2439–2444

    Article  PubMed  CAS  Google Scholar 

  • Alleman, A. R., G. H. Palmer, T. C. McGuire, T. F. McElwain, L. E. Perryman, and A. F. Barbet. 1997 Anaplasma marginale major surface protein 3 is encoded by a polymorphic, multigene family Infect. Immun. 65 156–163

    PubMed  CAS  Google Scholar 

  • Anacker, R. L., R. E. Mann, and C. Gonzales. 1987 Reactivity of monoclonal antibodies to Rickettsia rickettsii with spotted fever and typhus group rickettsiae J. Clin. Microbiol. 25 167–171

    PubMed  CAS  Google Scholar 

  • Anderson, B. E. 1990a The 17-kilodalton protein antigens of spotted fever and typhus group rickettsiae Ann. NY Acad. Sci. 590 326–333

    Article  PubMed  CAS  Google Scholar 

  • Anderson, B. E., G. A. McDonald, D. C. Jones, and R. L. Regnery. 1990b A protective protein antigen of Rickettsia rickettsii has tandemly repeated, near-identical sequences Infect. Immun. 58 2760–2769

    PubMed  CAS  Google Scholar 

  • Anderson, B. E., K. G. Sims, J. G. Olson, J. E. Childs, J. F. Piesman, C. M. Happ, G. O. Maupin, and B. J. Johnson. 1993 Amblyomma americanum: A potential vector of human ehrlichiosis Am. J. Trop. Med. Hyg. 49 239–244

    PubMed  CAS  Google Scholar 

  • Andersson, S. G. E., A. Zomorodipour, J. O. Andersson, T. Sicheritz-Ponten, U. C. M. Alsmark, R. M. Podowski, A. K. Naslund, A.-S. Eriksson, H. H. Winkler, and C. G. Kurland. 1998 The genome sequence of Rickettsia prowazekii and the origin of mitochondria Nature 396 133–140

    Article  PubMed  CAS  Google Scholar 

  • Andersson, S. G., D. R. Stothard, P. Fuerst, and C. G. Kurland. 1999 Molecular phylogeny and rearrangement of rRNA genes in Rickettsia species Molec. Biol. Evol. 16 987–995

    Article  PubMed  CAS  Google Scholar 

  • Andrew, H. R., and R. A. Norval. 1989 The carrier status of sheep, cattle and African buffalo recovered from heartwater Vet. Parasitol. 34 261–266

    Article  PubMed  CAS  Google Scholar 

  • Anziani, O. S., S. A. Ewing, and R. W. Barker. 1990 Experimental transmission of a granulocytic form of the tribe Ehrlichieae by Dermacentor variabilis and Amblyomma americanum to dogs Am. J. Vet. Res. 51 929–931

    PubMed  CAS  Google Scholar 

  • Audy, J. R. 1968 Akamushi: the red mites of Japan In: J. R. Audy (Ed.) Red Mites and Typhus Oxford University Press New York, NY 28–62

    Google Scholar 

  • Bakken, J. S., J. S. Dumler, S.-M. Chen, M. R. Eckman, L. L. VanEtta, and D. H. Walker. 1994 Human granulocytic ehrlichiosis in the upper midwest United States: A new species emerging? JAMA 272 212–218

    Article  PubMed  CAS  Google Scholar 

  • Bakken, J. S., J. Krueth, C. Wilson-Nordskog, R. L. Tilden, K. Asanovich, and J. S. Dumler. 1996 Clinical and laboratory characteristics of human granulocytic ehrlichiosis JAMA 275 199–205

    Article  PubMed  CAS  Google Scholar 

  • Bakken, J. S., and J. S. Dumler. 2000 Human granulocytic ehrlichiosis Clin. Infect. Dis. 31 554–560

    Article  PubMed  CAS  Google Scholar 

  • Barbet, A. F., G. H. Palmer, P. J. Myler, and T. C. Mcguire. 1987 Characterization of an immunoprotective protein complex of Anaplasma marginale by cloning and expression of the gene coding for polypeptide Am105L Infect. Immun. 55 2428–2435

    PubMed  CAS  Google Scholar 

  • Barbet, A. F., A. Lundgren, J. Yi, F. R. Rurangirwa, and G. H. Palmer. 2000 Antigenic variation of Anaplasma marginale by expression of MSP2 mosaics Infect. Immun. 68 6133–6138

    Article  PubMed  CAS  Google Scholar 

  • Barlough, J. E., J. E. Madigan, V. L. Kramer, J. R. Clover, L. T. Hui, J. P. Webb, and L. K. Vredevoe. 1997 Ehrlichia phagocytophila genogroup rickettsiae in ixodid ticks from California collected in 1995 and 1996 J. Clin. Microbiol. 35 2018–2021

    PubMed  CAS  Google Scholar 

  • Barnewall, R. E., and Y. Rikihisa. 1994 Abrogation of gamma interferon-induced inhibition of Ehrlichia chaffeensis infection in human monocytes with iron transferrin Infect. Immun. 62 4804–4810

    PubMed  CAS  Google Scholar 

  • Barnewall, R. E., Y. Rikihisa, and E. H. Lee. 1997 Ehrlichia chaffeensis inclusions are early endosomes which selectively accumulate transferrin receptor Infect. Immun. 65 1455–1461

    PubMed  CAS  Google Scholar 

  • Barnewall, R. E., N. Ohashi, and T. Rikihisa. 1999a Ehrlichia chaffeensis and E. sennetsu, but not the human granulocytic ehrlichiosis agent, colocalize with transferrin receptor and up-regulate transferrin receptor mRNA by activating iron-responsive protein 1 Infect. Immun. 67 2258–2265

    PubMed  CAS  Google Scholar 

  • Bella, F., B. Font, S. Uriz, T. Munoz, E. Espejo, J. Traveria, J. A. Serrano, and F. Segura. 1990 Randomized trial of doxycycline versus josamycin for Mediterranean spotted fever Antimicrob. Agents Chemother. 34 937–938

    Article  PubMed  CAS  Google Scholar 

  • Bjoersdorff, A., P. Brouqui, I. Eliasson, R. F. Massung, B. Wittesjö, and J. Berglund. 1999 Serological evidence of ehrlichia infection in Swedish lyme borreliosis patients Scand. J. Infect. Dis. 31 51–55

    Article  PubMed  CAS  Google Scholar 

  • Bouyer, D. H., J. Stenos, P. Crocquet-Valdes, C. G. Moron, V. L. Popov, J. E. Zavala-Velazquez, L. D. Foil, D. R. Stothard, A. F. Azad, and D. H. Walker. 2001 Rickettsia felis: molecular characterization of a new member of the spotted fever group Int. J. Syst. Evol. Microbiol. 51 339–347

    PubMed  CAS  Google Scholar 

  • Brand, B. C., A. B. Sadosky, and H. A. Shuman. 1994 The Legionella pneumophila icm locus: A set of genes required for intracellular multiplication in human macrophages Molec. Microbiol. 14 797–808

    Article  CAS  Google Scholar 

  • Brayton, K. A., D. P. Knowles, T. C. McGuire, and G. H. Palmer. 2001 Efficient use of a small genome to generate antigenic diversity in tick-borne ehrlichial pathogens Proc. Natl. Acad. Sci. USA 98 4130–4135

    Article  PubMed  CAS  Google Scholar 

  • Breitschwerdt, E. B., B. C. Hegarty, and S. I. Hancock. 1998 Sequential evaluation of dogs naturally infected with Ehrlichia canis, Ehrlichia chaffeensis, Ehrlichia equi, Ehrlichia ewingii, or Bartonella vinsonii J. Clin. Microbiol. 36 2645–2651

    PubMed  CAS  Google Scholar 

  • Brill, N. E. 1910 An acute infectious disease of unknown origin: A clinical study based on 221 cases Am. J. Med. Sci. 139 484–502

    Article  Google Scholar 

  • Brizuela, C. M., C. A. Ortellado, E. Sanabria, O. Torres, and D. Ortigosa. 1998 The safety and efficacy of Australian tick-borne disease vaccine strains in cattle in Paraguay Vet. Parasitol. 76 27–41

    Article  PubMed  CAS  Google Scholar 

  • Brown, G. W., A. Shirai, C. Rogers, and M. G. Groves. 1983 Diagnostic criteria for scrub typhus: probability values for immunofluorescent antibody and Proteus OXK agglutinin titers Am. J. Trop. Med. Hyg. 32 1101–1107

    PubMed  CAS  Google Scholar 

  • Brown, G. W. 1988 Scrub typhus: pathogenesis and clinical syndrome In: D. H. Walker (Ed.) Biology of Rickettsial Diseases CRC Press Boca Raton, FL 94–100

    Google Scholar 

  • Brown, W. C., V. Shkap, D. Zhu, T. C. Mcguire, W. Tuo, T. F. McElwain, and G. H. Palmer. 1998 CD4(+) T-lymphocyte and immunoglobulin G2 responses in calves immunized with Anaplasma marginale outer membranes and protected against homologous challenge Infect. Immun. 66 5406–5413

    PubMed  CAS  Google Scholar 

  • Burgdorfer, W. 1988 Ecological and epidemiological considerations of Rocky Mountain spotted fever and scrub typhus In: D. H. Walker (Ed.) Biology of Rickettsial Diseases CRC Press Boca Raton, FL 33–50

    Google Scholar 

  • Burridge, M. J., L. A. Simmons, and S. A. Allan. 2000 Introduction of potential heartwater vectors and other exotic ticks into Florida on imported reptiles J. Parasitol. 86 700–704

    PubMed  CAS  Google Scholar 

  • Callaini, G., R. Dallai, and M. G. Riparbelli. 1997 Wolbachia-induced delay of paternal chromatin condensation does not prevent maternal chromosomes from entering anaphase in incompatible crosses of Drosophila simulans J. Cell Sci. 110 271–280

    PubMed  CAS  Google Scholar 

  • Cao, W. C., Q. M. Zhao, P. H. Zhang, J. S. Dumler, X. T. Zhang, L. Q. Fang, and H. Yang. 2000 Granulocytic ehrlichiae in Ixodes persulcatus ticks from an area in China where Lyme disease is endemic J. Clin. Microbiol. 38 4208–4210

    PubMed  CAS  Google Scholar 

  • Cascio, A., C. Colomba, D. Di Rosa, L. Salsa, L. di Martino, and L. Titone. 2001 Efficacy and safety clarithromycin as treatment for Mediterranean spotted fever in children: a randomized controlled trial Clin. Infect. Dis. 33 409

    Article  PubMed  CAS  Google Scholar 

  • Chae, J. S., N. Pusterla, E. Johnson, E. DeRock, S. P. Lawler, and J. E. Madigan. 2000 Infection of aquatic insects with trematode metacercariae carrying Ehrlichia risticii, the cause of Potomac horse fever J. Med. Entomol. 37 619–625

    Article  PubMed  CAS  Google Scholar 

  • Chen, D.-Q., B. C. Campbell, and A. H. Purcell. 1996 A new rickettsia from a herbivorous insect, the pea aphid Acyrthosiphon pisum (Harris) Curr. Microbiol. 33 123–128

    Article  PubMed  CAS  Google Scholar 

  • Chen, S. M., X. J. Yu, V. L. Popov, E. L. Westerman, F. G. Hamilton, and D. H. Walker. 1997 Genetic and antigenic diversity of Ehrlichia chaffeensis: comparative analysis of a novel human strain from Oklahoma and previously isolated strains J. Infect. Dis. 175 856–863

    Article  PubMed  CAS  Google Scholar 

  • Ching, W. M., G. A. Dasch, M. Carl, and M. E. Dobson. 1990 Structural analyses of the 120-kDa serotype protein antigens of typhus group rickettsiae. Comparison with other S-layer proteins Ann. NY Acad. Sci. 590 334–351

    Article  PubMed  CAS  Google Scholar 

  • Ching, W. M., D. Rowland, Z. Zhang, A. L. Bourgeois, D. Kelly, G. A. Dasch, and P. L. Devine. 2002 Early diagnosis of scrub typhus with a rapid flow assay using recombinant major outer membrane protein antigen (r56) of Orietia tsutsugamushi Clin. Diag. Lab. Immunol. 8 409–414

    Google Scholar 

  • Cho, N.-H., S.-Y. Seong, M.-S. Choi, and I.-S. Kim. 2001 Expression of chemokine genes in human dermal microvascular endothelial cell lines infected with Orientia tsutsugamushi Infect. Immun. 69 1265–1272

    Article  PubMed  CAS  Google Scholar 

  • Christie, P. J. 1997 Agrobacterium tumefaciens T-complex transport apparatus: a paradigm for a new family of multifunctional transporters in eubacteria J. Bacteriol. 179 3085–3094

    PubMed  CAS  Google Scholar 

  • Conor, A., and A. Bruch. 1910 Une fièvre éeruptive observée en Tunisie Bulletin de la Société de Pathologie Exotique 3 492–496

    Google Scholar 

  • Covacci, A., J. L. Telford, G. Del Giudice, J. Parsonnet, and R. Rappuoli. 1999 Helicobacter pylori virulence and genetic geography Science 284 1328–1333

    Article  PubMed  CAS  Google Scholar 

  • Dalton, M. J., M. J. Clarke, R. C. Holman, J. W. Krebs, D. B. Fishbein, J. G. Olson, and J. E. Childs. 1995 National surveillance for Rocky Mountain spotted fever, 1981–1992: Epidemiologic summary and evaluation of risk factors for fatal outcome Am. J. Trop. Med. Hyg. 52 405–413

    PubMed  CAS  Google Scholar 

  • Dasch, G. A., D. Strickman, G. Watt, and C. Eamsila. 1996 Measuring genetic variability in Orientia tsutsugamushi by PCR/RFLP analysis: A new approach to questions about its epidemiology, evolution, and ecology In: J. Kazar and R. Toman (Eds.) Rickettsiae and Rickettsial Diseases: Proceedings of the Vth International Symposium, Veda, Bratislava 79–84

    Google Scholar 

  • Dasch, G. A., A. L. Bourgeois, and F. M. Rollwagen. 1999 The surface protein antigen of Rickettsia typhi: in vitro and in vivo immunogenicity and protective efficacy in mice In: D. Raoult and P. Brouqui (Eds.) Rickettsiae and Rickettsial Diseases at the Turn of the Third Millenium Elsevier Paris, France 116–122

    Google Scholar 

  • Davis, M. J., Z. Ying, B. R. Brunner, A. Pantoja, and F. H. Ferwerda. 1998 Rickettsial relative associated with papaya bunchy top disease Curr. Microbiol. 36 80–84

    Article  PubMed  CAS  Google Scholar 

  • Dawson, J. E., J. E. Childs, K. L. Biggie, C. Moore, D. Stallknecht, J. Shaddock, J. Bouseman, E. Hofmeister, and J. G. Olson. 1994a White-tailed deer as a potential reservoir of Ehrlichia spp J. Wildl. Dis. 30 162–168

    PubMed  CAS  Google Scholar 

  • Dawson, J. E., D. E. Stallknecht, E. W. Howerth, C. Warner, K. Biggie, W. R. Davidson, J. M. Lockhart, V. F. Nettles, J. G. Olson, and J. E. Childs. 1994b Susceptibility of white-tailed deer (Odocoileus virginianus) to infection with Ehrlichia chaffeensis, the etiologic agent of human ehrlichiosis J. Clin. Microbiol. 32 2725–2728

    PubMed  CAS  Google Scholar 

  • Dawson, J. E., K. L. Biggie, C. K. Warner, K. Cookson, S. Jenkins, J. F. Levine, and J. G. Olson. 1996 Polymerase chain reaction evidence of Ehrlichia chaffeensis, an etiologic agent of human ehrlichiosis, in dogs from southeast Virginia Am. J. Vet. Res. 57 1175–1179

    PubMed  CAS  Google Scholar 

  • Deem, S. L. 1998 A review of heartwater and the threat of introduction of Cowdria ruminantium and Amblyomma spp. ticks to the American mainland J. Zoo. Wildl. Med. 29 109–113

    PubMed  CAS  Google Scholar 

  • de la Fuente J., J. C. Garcia-Garcia, E. F. Blouin, and K. M. Kocan. 2001 Differential adhesion of major surface proteins 1a and 1b of the ehrlichial cattle pathogen Anaplasma marginale to bovine erythrocytes and tick cells Int. J. Parasitol. 31 145–153

    Article  PubMed  Google Scholar 

  • De Waal, D. T. 2000 Anaplasmosis control and diagnosis in South Africa Ann. NY Acad. Sci. 916 474–483

    Article  Google Scholar 

  • Donohue, J. F. 1978 Pulmonary manifestations of Rocky Mountain spotted fever In: E. D. Robin (Ed.) Regional Problems in Respiratory Diseases Medical Communications Northfield, MN 17–19

    Google Scholar 

  • Duma, R. J., D. E. Sonenshine, F. M. Bozeman, J. M. Veazey, Jr., B. L. Elisberg, D. P. Chadwick, N. I. Stocks, T. M. McGill, G. B. Miller Jr., and J. N. MacCormack. 1981 Epidemic typhus in the United States associated with flying squirrels JAMA 245 2318–2323

    Article  PubMed  CAS  Google Scholar 

  • Dumler, J. S., J. P. Taylor, and D. H. Walker. 1991 Clinical and laboratory features of murine typhus in South Texas, 1980 through 1987 JAMA 266 1365–1370

    Article  PubMed  CAS  Google Scholar 

  • Dumler, J. S., and J. S. Bakken. 1996 Human granulocytic ehrlichiosis in Wisconsin and Minnesota: a frequent infection with the potential for persistence J. Infect. Dis. 173 1027–1030

    Article  PubMed  CAS  Google Scholar 

  • Dumler, J. S., A. F. Barbet, C. P. Bekker, G. A. Dasch, G. H. Palmer, S. C. Ray, Y. Rikihisa, and F. R. Rurangirwa. 2001 Reorganization of genera in the families Rickettsiaceae and Anaplasmataceae in the order Rickettsiales: Unification of some species of Ehrlichia with Anaplasma, Cowdria with Ehrlichia and Ehrlichia with Neorickettsia, descriptions of six new species combinations and designation of Ehrlichia equi and “HGE agent” as subjective synonyms of Ehrlichia phagocytophila Int. J. Syst. Evol. Microbiol. 51 2145–2165

    Article  PubMed  CAS  Google Scholar 

  • Dutra, F., L. F. Schuch, E. Delucchi, B. R. Curcio, H. Coimbra, M. B. Raffi, O. Dellagostin, and F. Riet-Correa. 2001 Equine monocytic ehrlichiosis (Potomac horse fever) in horses in Uruguay and southern Brazil J. Vet. Diagn. Invest. 13 433–437

    Article  PubMed  CAS  Google Scholar 

  • Dutta, S. K., B. E. Penney, A. C. Myrup, M. G. Robl, and R. M. Rice. 1988 Disease features in horses with induced equine monocytic ehrlichiosis (Potomac horse fever) Am. J. Vet. Res. 49 1747–1751

    PubMed  CAS  Google Scholar 

  • Elghetany, T. M., and D. Walker. 1999 Hemostatic changes in Rocky Mountain spotted fever and Mediterranean spotted fever Am. J. Clin. Pathol. 112 159–168

    PubMed  CAS  Google Scholar 

  • Eremeeva, M. E., and D. J. Silverman. 1998 Effects of the antioxidant α-lipoic acid on human umbilical vein endothelial cells infected with Rickettsia rickettsii Infect. Immun. 66 2290–2299

    PubMed  CAS  Google Scholar 

  • Eremeeva, M. E., G. A. Dasch, and D. J. Silverman. 2001 Quantitative analyses of variations in the injury of endothelial cells elicited by 11 isolates of Rickettsia rickettsii Clin. Diagn. Lab. Immunol. 8 788–795

    PubMed  CAS  Google Scholar 

  • Everett, E. D., K. A. Evans, R. B. Henry, and G. McDonald. 1994 Human ehrlichiosis in adults after tick exposure Ann. Intern. Med. 120 730–735

    PubMed  CAS  Google Scholar 

  • Ewing Jr., E. P., A. Takeuchi, A. Shirai, and J. V. Osterman. 1978 Experimental infection of mouse peritoneal mesothelium with scrub typhus rickettsiae: An ultrastructural study Infect. Immun. 19 1068–1075

    PubMed  Google Scholar 

  • Fishbein, D. B., J. E. Dawson, and L. E. Robinson. 1994 Human ehrlichiosis in the United States, 1985 to 1990 Ann. Intern. Med. 120 736–743

    PubMed  CAS  Google Scholar 

  • Fournier, P. E., V. Roux, and D. Raoult. 1998 Phylogenetic analysis of spotted fever group rickettsiae by study of the outer surface protein rOmpA Int. J. Syst. Bacteriol. 48 839–849

    Article  PubMed  CAS  Google Scholar 

  • French, D. M., T. F. McElwain, T. C. Mcguire, and G. H. Palmer. 1998 Expression of Anaplasma marginale major surface protein 2 variants during persistent cyclic rickettsemia Infect. Immun. 66 1200–1207

    PubMed  CAS  Google Scholar 

  • Furuya, Y., Y. Yoshida, T. Katayama, F. Kawamori, S. Yamamoto, N. Ohashi, A. Tamura, and A. Kawamura Jr. 1991 Specific amplification of Rickettsia tsutsugamushi DNA from clinical specimens by polymerase chain reaction J. Clin. Microbiol. 29 2628–2630

    PubMed  CAS  Google Scholar 

  • Furuya, Y., T. Katayama, Y. Yoshida, and I. Kaiho. 1995 Specific amplification of Rickettsia japonica DNA from clinical specimens by PCR J. Clin. Microbiol. 33 487–489

    PubMed  CAS  Google Scholar 

  • Gage, K. L., W. Burgdorfer, and C. E. Hopla. 1990 Hispid cotton rats (Sigmodon hispidus) as a source for infecting immature Dermacentor variabilis (Acari: Ixodidae) with Rickettsia rickettsii J. Med. Entomol. 27 615–619

    PubMed  CAS  Google Scholar 

  • Galan, J. E., and A. Collmer. 1999 Type III secretion machines: bacterial devices for protein delivery into host cells Science 284 1322–1328

    Article  PubMed  CAS  Google Scholar 

  • Geng, P., and T. R. Jerrells. 1994 The role of tumor necrosis factor in host defense against scrub typhus rickettsiae. I: Inhibition of growth of Rickettsia tsutsugamushi, Karp strain, in cultured murine embryonic cells and macrophages by recombinant tumor necrosis factor-alpha Microbiol. Immunol. 38 703–711

    PubMed  CAS  Google Scholar 

  • Gilmore Jr., R. D. 1993 Comparison of the rompA gene repeat regions of Rickettsiae reveals species-specific arrangements of individual repeating units Gene 125 97–102

    Article  PubMed  CAS  Google Scholar 

  • Goodman, J. L., C. Nelson, B. Vitale, J. E. Madigan, J. S. Dumler, T. J. Kurtti, and U. G. Munderloh. 1996 Direct cultivation of the causative agent of human granulocytic ehrlichiosis N. Engl. J. Med. 334 209–215

    Article  PubMed  CAS  Google Scholar 

  • Groves, M. G., G. L. Dennis, H. L. Amyx, and D. L. Huxsoll. 1975 Transmission of Ehrlichia canis to dogs by ticks (Rhipicephalus sanguineus) Am. J. Vet. Res. 36 937–940

    PubMed  CAS  Google Scholar 

  • Gusa, A. A., R. S. Buller, G. A. Storch, M. M. Huycke, L. J. Machado, L. N. Slater, S. L. Stockham, and R. F. Massung. 2001 Identification of a p28 gene in Ehrlichia ewingii: Evaluation of gene for use as a target for a species-specific PCR diagnostic assay J. Clin. Microbiol. 39 3871–3876

    Article  PubMed  CAS  Google Scholar 

  • Hackstadt, T., R. Messer, W. Cieplak, and M. G. Peacock. 1992 Evidence for proteolytic cleavage of the 120-kilodalton outer membrane protein of rickettsiae: identification of an avirulent mutant deficient in processing Infect. Immun. 60 159–165

    PubMed  CAS  Google Scholar 

  • Hanson, B. 1991 Comparative susceptibility to mouse interferons of Rickettsia tsutsugamushi strains with different virulence in mice and of Rickettsia rickettsii Infect. Immun. 59 4134–4141

    PubMed  CAS  Google Scholar 

  • Harrell, G. T., and J. K. Aikawa. 1949 Pathogenesis of circulatory failure in Rocky Mountain spotted fever: Alteration in the blood volume and the thiocyanate space at various stages of the disease Arch. Intern. Med. 83 331–347

    Article  CAS  Google Scholar 

  • Harrus, S., T. Waner, I. Aizenberg, J. E. Foley, A. M. Poland, and H. Bark. 1998 Amplification of ehrlichial DNA from dogs 34 months after infection with Ehrlichia canis J. Clin. Microbiol. 36 73–76

    PubMed  CAS  Google Scholar 

  • Harrus, S., T. Waner, H. Bark, F. Jongejan, and A. W. C. A. Cornelissen. 1999 Recent advances in determining the pathogenesis of canine monocytic ehrlichiosis J. Clin. Microbiol. 37 2745–2749

    PubMed  CAS  Google Scholar 

  • Hattwick, M. A. W., H. Retailliau, R. J. O’Brien, M. Slutzker, R. E. Fontaine, and B. Hanson. 1978 Fatal Rocky Mountain spotted fever JAMA 240 1499–1503

    Article  PubMed  CAS  Google Scholar 

  • Hayes, S. F., and W. Burgdorfer. 1982 Reactivation of Rickettsia rickettsii in Dermacentor andersoni ticks: An ultrastructural analysis Infect. Immun. 37 779–785

    PubMed  CAS  Google Scholar 

  • Heinzen, R. A., S. F. Hayes, M. G. Peacock, and T. Hackstadt. 1993 Directional actin polymerization associated with spotted fever group rickettsia infection of Vero cells Infect. Immun. 61 1926–1935

    PubMed  CAS  Google Scholar 

  • Heinzen, R. A., S. S. Grieshaber, L. S. Van Kirk, and C. J. Dewin. 1999 Dynamics of actin-based movement of Rickettsia rickettsii in Vero cells Infect. Immun. 67 4201–4207

    PubMed  CAS  Google Scholar 

  • Helmick, C. G., K. W. Bernard, and L. J. D’Angelo. 1984 Rocky Mountain spotted fever: clinical, laboratory, and epidemiological features of 262 cases J. Infect. Dis. 150 480–488

    Article  PubMed  CAS  Google Scholar 

  • Henderson, I. R., F. Navarro-Garcia, and J. P. Nataro. 1998 The great escape: Structure and function of the autotransporter proteins Trends Microbiol. 6 370–378

    Article  PubMed  CAS  Google Scholar 

  • Herron, M. J., C. M. Nelson, J. Larson, K. R. Snapp, G. S. Kansas, and J. L. Goodman. 2000 Intracellular parasitism by the human granulocytic ehrlichiosis bacterium through the P-selectin ligand, PSGL-1 Science 288 1653–1656

    Article  PubMed  CAS  Google Scholar 

  • Hoerauf, A., L. Volkmann, C. Hamelmann, O. Adjei, I. B. Autenrieth, B. Fleischer, and D. W. Buttner. 2000 Endosymbiotic bacteria in worms as targets for a novel chemotherapy in filariasis Lancet 355 1242–1243

    Article  PubMed  CAS  Google Scholar 

  • Holman, R. C., C. D. Paddock, A. T. Curns, J. W. Krebs, J. H. McQuiston, and J. E. Childs. 2002 Analysis of risk factors for fatal Rocky Mountain spotted fever: Evidence for superiority of tetracyclines for therapy J. Infect. Dis. 184 1437–1444

    Article  Google Scholar 

  • Horney, L. F., and D. H. Walker. 1988 Meningoencephalitis as a major manifestation of Rocky Mountain spotted fever South. Med. J. 81 915–918

    Article  PubMed  CAS  Google Scholar 

  • Horowitz, H. W., M. E. Aguero-Rosenfeld, D. F. McKenna, D. Holmgren, T. C. Hsieh, S. Varde, J. S. Dumler, J. M. Wu, I. Schwartz, Y. Rikihisa, and G. Wormser. 1998a Clinical and laboratory spectrum of culture-proven human granulocytic ehrlichiosis: Comparison with culture-negative cases Clin. Infect. Dis. 27 1314–1317

    Article  PubMed  CAS  Google Scholar 

  • Horowitz, H. W., J. Raffalli, R. B. Nadelman, J. Wu, and G. P. Wormser. 1998b Saddleback fever due to human granulocytic ehrlichiosis Lancet 351 650

    Article  PubMed  CAS  Google Scholar 

  • Hove, M. G. M., and D. H. Walker. 1995 Persistence of rickettsiae in the partially viable gangrenous margins of amputated extremities 5 to 7 weeks after onset of Rocky Mountain spotted fever Arch. Pathol. Lab. Med. 119 429–431

    PubMed  CAS  Google Scholar 

  • Ihn, K.-S., S.-H. Han, H.-R. Kim, M.-S. Huh, J.-S. Kang, T.-H. Han, I.-S. Kim, and M.-S. Choi. 2000 Cellular invasion of Orientia tsutsugamushi requires initial interaction with cell surface heparan sulfate Microb. Pathogen. 28 227–233

    Article  CAS  Google Scholar 

  • Ijdo, J. W., W. Sun, Y. Zhang, L. A. Magnarelli, and E. Fikrig. 1998 Cloning of the gene encoding the 44-kilodalton antigen of the agent of human granulocytic ehrlichiosis and characterization of the humoral response Infect. Immun. 66 3264–3269

    PubMed  CAS  Google Scholar 

  • Inokuma, H., D. Raoult, and P. Brouqui. 2000 Detection of Ehrlichia platys DNA in brown dog ticks (Rhipicephalus sanguineus) in Okinawa Island, Japan J. Clin. Microbiol. 38 4219–4221

    PubMed  CAS  Google Scholar 

  • Jauron, S. D., C. M. Nelson, V. Fingerle, M. D. Ravyn, J. L. Goodman, R. C. Johnson, R. Lobentanzer, B. Wilske, and U. G. Munderloh. 2001 Host cell-specific expression of a p44 epitope by the human granulocytic ehrlichiosis agent J. Infect. Dis. 184 1445–1450

    Article  PubMed  CAS  Google Scholar 

  • Jerrells, T. R., and P. Geng. 1994 The role of tumor necrosis factor in host defense against scrub typhus rickettsiae. II: Differential induction of tumor necrosis factor-alpha production by Rickettsia tsutgusamushi and Rickettsia conorii Microbiol. Immunol. 38 713–719

    PubMed  CAS  Google Scholar 

  • Kaplowitz, L. G., J. J. Fischer, and P. F. Sparling. 1981 Rocky Mountain spotted fever: A clinical dilemma Curr. Clin. Top. Infect. Dis. 2 89–108

    Google Scholar 

  • Kaplowitz, L. G., and G. L. Robertson. 1983a Hyponatremia in Rocky Mountain spotted fever: Role of antidiuretic hormone Ann. Intern. Med. 98 334–335

    PubMed  CAS  Google Scholar 

  • Kaplowitz, L. G., J. V. Lange, J. J. Fischer, and D. H. Walker. 1983b Correlation of rickettsial titers, circulating endotoxin, and clinical features in Rocky Mountain spotted fever Arch. Intern. Med. 143 1149–1151

    Article  PubMed  CAS  Google Scholar 

  • Kass, E. M., W. K. Szaniawski, H. Levy, J. Leach, K. Srinivasan, and C. Rives. 1994 Rickettsialpox in New York City Hospital, 1980 to 1989 N. Engl. J. Med. 331 1612–1617

    Article  PubMed  CAS  Google Scholar 

  • Kee, S.-H., K.-A. Cho, M.-K. Kim, B.-U. Lim, W.-H. Chang, and J.-S. Kang. 2002 Disassembly of focal adhesions during apoptosis of endothelial cell line ECV304 infected with Orientia tsutsugamushi Microb. Pathog. 27 265–271

    Article  Google Scholar 

  • Kelly, D. J., C. T. Chan, H. Paxton, K. Thompson, R. Howard, and G. A. Dasch. 1995 Comparative evaluation of a commerical enzyme immunoassay for the detection of human antibody to Rickettsia typhi Clin. Diag. Lab. Immunol. 2 356–360

    CAS  Google Scholar 

  • Kelly, P. J., L. Beati, P. R. Mason, L. A. Matthewman, V. Roux, and D. Raoult. 1996 Rickettsia africae sp. nov., the etiological agent of African tick bite fever Int. J. Syst. Bacteriol. 46 611–614

    Article  PubMed  CAS  Google Scholar 

  • Kim, I. S., S. Y. Seong, S. G. Woo, M.-S. Choi, and W. H. Chang. 1993 High-level expression of a 56-kilodalton protein gene (bor56) of Rickettsia tsutsugamushi Boryong and its application to enzyme-linked immunosorbent assays J. Clin. Microbiol. 31 598–605

    PubMed  CAS  Google Scholar 

  • Kim, S. J., I. K. Chung, I. S. Chung, D. H. Song, S. H. Park, H. S. Kim, and M. H. Lee. 2000 The clinical significance of upper gastrointestinal endoscopy in gastrointestinal vasculitis related to scrub typhus Endoscopy 32 950–955

    Article  PubMed  CAS  Google Scholar 

  • Kim, S. W., K. S. Ihn, S. H. Han, I. S. Kim, and M. S. Choi. 2002a Microtubule-and dynein-meditated movement of Orientia tsutsugamushi to the microtubule organizing center Infect. Immun. 69 494–500

    Article  Google Scholar 

  • Kim, D.-E., S. H. Lee, K. Park, K.-J. Chang, and J. K. Roh. 2002b Scrub typhus encephalomyelitis with prominent focal neurologic signs Arch. Neurol. 57 1770–1772

    Article  Google Scholar 

  • Kirkland, K. B., P. K. Marcom, D. J. Sexton, J. S. Dumler, and D. H. Walker. 1993 Rocky Mountain spotted fever complicated by gangrene: report of six cases and review Clin. Infect. Dis. 16 629–634

    Article  PubMed  CAS  Google Scholar 

  • Kocan, K. M., D. Holbert, W. Edwards, S. A. Ewing, S. J. Barron, and J. A. Hair. 1986 Longevity of colonies of Anaplasma marginale in midgut epithelial cells of Dermacentor andersoni Am. J. Vet. Res. 47 1657–1661

    PubMed  CAS  Google Scholar 

  • Kocan, K. M., D. Stiller, W. L. Goff, P. L. Claypool, W. Edwards, S. A. Ewing, T. C. Mcguire, J. A. Hair, and S. J. Barron. 1992 Development of Anaplasma marginale in male Dermacentor andersoni transferred from parasitemic to susceptible cattle Am. J. Vet. Res. 53 499–507

    PubMed  CAS  Google Scholar 

  • Kocan, K. M., E. F. Blouin, G. H. Palmer, I. S. Eriks, and W. L. Edwards. 1996 Strategies to interrupt the development of Anaplasma marginale in its tick vector: The effect of bovine-derived antibodies Ann. NY Acad. Sci. 791 157–165

    Article  PubMed  CAS  Google Scholar 

  • Kocan, K. M., E. F. Blouin, and A. F. Barbet. 2000a Anaplasmosis control. Past, present, and future Ann. NY Acad. Sci. 916 501–509

    Article  PubMed  CAS  Google Scholar 

  • Kocan, A. A., G. C. Levesque, L. C. Whitworth, G. L. Murphy, S. A. Ewing, and R. W. Barker. 2000b Naturally occurring Ehrlichia chaffeensis infection in coyotes from Oklahoma Emerg. Infect. Dis. 6 477–480

    Article  PubMed  CAS  Google Scholar 

  • Kotob, S. I., S. Z. Hausman, and D. L. Burns. 1995 Localization of the promoter for the ptl genes of Bordetella pertussis, which encode proteins essential for secretion of pertussis toxin Infect. Immun. 63 3227–3230

    PubMed  CAS  Google Scholar 

  • Kramer, V. L., M. P. Randolph, L. T. Hui, W. E. Irwin, A. G. Gutierrez, and D. J. Vugia. 1999 Detection of the agents of human ehrlichioses in ixodid ticks from California Am. J. Trop. Med. Hyg. 60 62–65

    PubMed  CAS  Google Scholar 

  • Kuldau, G. A., G. De Vos, J. Owen, G. McCaffrey, and P. Zambryski. 1990 The virB operon of Agrobacterium tumefaciens pTiC58 encodes 11 open reading frames Molec. Gen. Genet. 221 256–266

    PubMed  CAS  Google Scholar 

  • Kumar, S., M. P. Yadav, V. B. Singh, and V. S. Padbidri. 1982 Rickettsioses surveillance in animals and man in Uttar Pradesh Indian J. Med. Res. 76 179–184

    PubMed  CAS  Google Scholar 

  • Kuttler, K. L., J. L. Zaugg, and L. W. Johnson. 1984 Serologic and clinical responses of premunized, vaccinated, and previously infected cattle to challenge exposure by two different Anaplasma marginale isolates Am. J. Vet. Res. 45 2223–2226

    PubMed  CAS  Google Scholar 

  • Lankford, H. V., and F. L. Glauser. 1980 Cardiopulmonary dynamics in a severe case of Rocky Mountain spotted fever Arch. Intern. Med. 140 1357–1360

    Article  PubMed  CAS  Google Scholar 

  • LaScola, B., and D. Raoult. 1996 Diagnosis of Mediterranean spotted fever by cultivation of Rickettsia conorii from blood and skin samples using the centrifugation-shell vial technique and by detection of R. conorii in circulating endothelial cells: A 6-year follow-up J. Clin. Microbiol. 34 2722–2727

    CAS  Google Scholar 

  • LaScola, B., and D. Raoult. 1997 Laboratory diagnosis of rickettsioses: current approaches to diagnosis of old and new rickettsial diseases J. Clin. Microbiol. 35 2715–2727

    CAS  Google Scholar 

  • Lassy, C. W., and T. L. Karr. 1996 Cytological analysis of fertilization and early embryonic development in incompatible crosses of Drosophila simulans Mech. Devel. 57 47–58

    Article  CAS  Google Scholar 

  • Li, H., and D. H. Walker. 1998 rOmpA is a critical protein for the adhesion of Rickettsia rickettsii to host cells Microb. Pathog. 24 289–298

    Article  PubMed  CAS  Google Scholar 

  • Lockhart, J. M., W. R. Davidson, D. E. Stallknecht, J. E. Dawson, and E. W. Howerth. 1997 Isolation of Ehrlichia chaffeensis from wild white-tailed deer (Odocoileus virginianus) confirms their role as natural reservoir hosts J. Clin. Microbiol. 35 1681–1686

    PubMed  CAS  Google Scholar 

  • Long, S. W., X. F. Zhang, H. Qi, S. Standaert, D. H. Walker, and X. J. Yu. 2002 Antigenic variation of Ehrlichia chaffeensis resulting from differential expression of the 28-kilodalton protein gene family Infect. Immun. 70 1824–1831

    Article  PubMed  CAS  Google Scholar 

  • Lotric-Furlan, S., M. Petrovec, T. Avsic-Zupanc, W. L. Nicholson, J. W. Sumner, J. E. Childs, and F. Strle. 1998 Human granulocytic ehrlichiosis in Europe: clinical and laboratory findings for four patients from Slovenia Clin. Infect. Dis. 27 424–428

    Article  PubMed  CAS  Google Scholar 

  • Madigan, J. E., N. Pusterla, E. Johnson, J. S. Chae, J. B. Pusterla, E. DeRock, and S. P. Lawler. 2000 Transmission of Ehrlichia risticii, the agent of Potomac horse fever, using naturally infected aquatic insects and helminth vectors: preliminary report Equine Vet. J. 32 275–279

    Article  PubMed  CAS  Google Scholar 

  • Mahan, S. M., B. Allsopp, K. M. Kocan, G. H. Palmer, and F. Jongejan. 1999 Vaccine strategies for Cowdria ruminantium infections and their application to other ehrlichial infections Parasitol. Today 15 290–294

    Article  PubMed  CAS  Google Scholar 

  • Mahan, S. M., T. F. Peter, B. H. Simbi, K. Kocan, E. Camus, A. F. Barbet, and M. J. Burridge. 2000 Comparison of efficacy of American and African Amblyomma ticks as vectors of heartwater (Cowdria ruminantium) infection by molecular analyses and transmission trials J. Parasitol. 86 44–49

    PubMed  CAS  Google Scholar 

  • Manor, E., N. H. Carbonetti, and D. J. Silverman. 1994 Rickettsia rickettsii has proteins with cross-reacting epitopes to eukaryotic phospholipase A2 and phospholipase C Microb. Pathog. 17 99–109

    Article  PubMed  CAS  Google Scholar 

  • Massung, R. F., K. Lee, M. Mauel, and A. Gusa. 2001 Characterization of the rRNA genes of Ehrlichia chaffeensis and Anaplasma phagocytophila In: American Society for Rickettsiology-Bartonella as an Emerging Pathogen Group 2001 Joint Conference, Big Sky, Montana 58

    Google Scholar 

  • Masui, S., T. Sasaki, and H. Ishikawa. 2000 Genes for the type IV secretion system in an intracellular symbiont, Wolbachia, a causative agent of various sexual alterations in arthropods J. Bacteriol. 182 6529–6531

    Article  PubMed  CAS  Google Scholar 

  • Masui, S., H. Kuroiwa, T. Sasaki, M. Inui, T. Kuroiwa, and H. Ishikawa. 2001 Bacteriophage WO and virus-like particles in Wolbachia, an endosymbiont of arthropods Biochem. Biophys. Res. Commun. 283 1099–1104

    Article  PubMed  CAS  Google Scholar 

  • McBride, J. W., X. J. Yu, and D. H. Walker. 2000 Glycosylation of homologous immunodominant proteins of Ehrlichia chaffeensis and Ehrlichia canis Infect. Immun. 68 13–18

    Article  PubMed  CAS  Google Scholar 

  • McDade, J. E., C. C. Shepard, M. A. Redus, V. F. Newhouse, and J. D. Smith. 1980 Evidence of Rickettsia prowazekii infections in the United States Am. J. Trop. Med. Hyg. 29 277–284

    PubMed  CAS  Google Scholar 

  • McDade, J. E., and V. F. Newhouse. 1986 Natural history of Rickettsia rickettsi Ann. Rev. Microbiol. 40 287–309

    Article  CAS  Google Scholar 

  • McDade, J. E. 1990 Evidence supporting the hypothesis that rickettsial virulence factors determine the severity of spotted fever and typhus group infections Ann. NY Acad. Sci. 590 20–26

    Article  PubMed  CAS  Google Scholar 

  • McQuiston, J. H., C. D. Paddock, R. C. Holman, and J. E. Childs. 1999 The human ehrlichioses in the United States Emerg. Infect. Dis. 5 635–642

    Article  PubMed  CAS  Google Scholar 

  • Messick, J. B., and Y. Rikihisa. 1993 Characterization of Ehrlichia risticii binding, internalization, and proliferation in host cells by flow cytometry Infect. Immun. 61 3803–3810

    PubMed  CAS  Google Scholar 

  • Messick, J. B., and Y. Rikihisa. 1994 Inhibition of binding, entry, or intracellular proliferation of Ehrlichia risticii in P388D1 cells by anti-E. risticii serum, immunoglobulin G, or fab fragment Infect. Immun. 62 3156–3161

    PubMed  CAS  Google Scholar 

  • Miller, J. Q., and T. R. Price. 1972a Involvement of the brain in Rocky Mountain spotted fever South. Med. J. 65 437–439

    Article  PubMed  CAS  Google Scholar 

  • Miller, J. Q., and T. R. Price. 1972b The nervous system in Rocky Mountain spotted fever Neurology 22 561–566

    Article  PubMed  CAS  Google Scholar 

  • Miura, N., Y. Kudoh, M. Osabe, T. Shimoda, S. Kohno, and K. Hara. 2002 Three cases of tsutsugamushi disease successfully treated with clarithormycin Acta Med. Nagasaki 40 44–47

    Google Scholar 

  • Montenegro, M. R., S. Mansueto, B. C. Hegarty, and D. H. Walker. 1983 The histology of “taches noires” of boutonneuse fever and demonstration of Rickettsia conorii in them by immunofluorescence Virchows Arch. 400 309–317

    Article  CAS  Google Scholar 

  • Moron, C. G., V. L. Popov, H.-M. Feng, D. Wear, and D. H. Walker. 2001 Identification of the target cells of Orientia tsutsugamushi in human cases of scrub typhus Mod. Pathol. 14 752–759

    Article  PubMed  CAS  Google Scholar 

  • Mott, J., R. E. Barnewall, and Y. Rikihisa. 1999 Human granulocytic ehrlichiosis agent and Ehrlichia chaffeensis reside in different cytoplasmic compartments in HL-60 cells Infect. Immun. 67 1368–1378

    PubMed  CAS  Google Scholar 

  • Munderloh, U. G., J. E. Madigan, J. S. Dumler, J. L. Goodman, S. F. Hayes, J. E. Barlough, C. M. Nelson, and T. J. Kurtti. 1996 Isolation of the equine granulocytic ehrlichiosis agent, Ehrlichia equi, in tick cell culture J. Clin. Microbiol. 34 664–670

    PubMed  CAS  Google Scholar 

  • Murphy, G. L., S. A. Ewing, L. C. Whitworth, J. C. Fox, and A. A. Kocan. 1998a A molecular and serologic survey of Ehrlichia canis, E. chaffeensis, and E. ewingii in dogs and ticks from Oklahoma Vet. Parasitol. 79 325–339

    Article  PubMed  CAS  Google Scholar 

  • Murphy, C. I., J. R. Storey, J. Recchia, L. A. Doros-Richert, C. Gingrich-Baker, K. Munroe, J. S. Bakken, R. T. Coughlin, and G. A. Beltz. 1998b Major antigenic proteins of the agent of human granulocytic ehrlichiosis are encoded by members of a multigene family Infect. Immun. 66 3711–3718

    PubMed  CAS  Google Scholar 

  • Nagai, H., J. C. Kagan, X. Zhu, R. A. Kahn, and C. R. Roy. 2002 A bacterial guanine nucleotide exchange factor activates ARF on Legionella phagosomes Science 295 679–682

    Article  PubMed  CAS  Google Scholar 

  • Niebylski, M. L., M. G. Peacock, M. E. Schrumpf, W. Burgdorfer, E. R. Fischer, K. L. Gage, and T. G. Schwan. 1996 Characterization of the East Side agent, a spotted fever group rickettsia infecting wood ticks, Dermacentor andersoni, in Western Montana In: J. Kazar and R. Toman (Eds.) Rickettsiae and Rickettsial Diseases. Proceedings of the Vth International Symposium, Veda Bratislavia 227–232

    Google Scholar 

  • Niebylski, M. L., M. E. Schrumpf, W. Burgdorfer, E. R. Fischer, K. L. Gage, and T. G. Schwan. 1997 Rickettsia peacockii sp. nov., a new species infecting wood ticks, Dermacentor andersoni, in western Montana Int. J. Syst. Bacteriol. 47 446–452

    Article  PubMed  CAS  Google Scholar 

  • Niebylski, M. L., M. G. Peacock, and T. G. Schwan. 1999 Lethal effect of Rickettsia rickettsii on its tick vector (Dermacentor andersoni) Appl. Environ. Microbiol. 65 773–778

    PubMed  CAS  Google Scholar 

  • Ofek, I., N. Sharon, and S. N. Abraham. 2002 Bacterial adhesion In: Dworkin M., S. Falkow, E. Rosenberg, K.-H. Schleifer, and E. Stackebrandt (Eds.) The Prokaryotes Springer-Verlag New York, NY 1–25

    Google Scholar 

  • Ogata, H., S. Audic, P. Renesto-Audiffren, P. E. Fournier, V. Barbe, D. Samson, V. Roux, P. Cossart, J. Weissenbach, J. M. Claverie, and D. Raoult. 2001 Mechanisms of evolution in Rickettsia conorii and R. prowazekii Science 293 2093–2098

    Article  PubMed  CAS  Google Scholar 

  • Ohashi, N., H. Nashimoto, H. Ikeda, and A. Tamura. 1992 Diversity of immunodominant 56-kDa type-specific antigen (TSA) of Rickettsia tsutsugamushi. Sequence and comparative analyses of the genes encoding TSA homologues from four antigenic variants J. Biol. Chem. 267 12728–12735

    PubMed  CAS  Google Scholar 

  • Ohashi, N., Y. Rikihisa, and A. Unver. 2001 Analysis of transcriptionally active gene clusters of major outer membrane protein multigene family in Ehrlichia canis and E. chaffeensis Infect. Immun. 69 2083–2091

    Article  PubMed  CAS  Google Scholar 

  • Ohashi, N., N. Zhi, Q. Lin, and Y. Rikihisa. 2002 Characterization and transcriptional analysis of gene clusters for a type IV secretion machinery in human granulocytic and monocytic ehrlichiosis agents Infect. Immun. 70 2128–2138

    Article  PubMed  CAS  Google Scholar 

  • Ojcius, D. M., M. Thibon, C. Mounier, and A. Dautry-Varsat. 1995 pH and calcium dependence of hemolysis due to Rickettsia prowazekii: comparison with phospholipase activity Infect. Immun. 63 3069–3072

    PubMed  CAS  Google Scholar 

  • Olano, J. P., E. Masters, L. Cullman, W. Hogrefe, X.-J. Yu, and D. H. Walker. 1999 Human monocytotrophic ehrlichiosis (HME): Epidemiological, clinical and laboratory diagnosis of a newly emergent infection in the United States In: D. Raoult and P. Brouqui (Eds.) Rickettsiae and Rickettsial Diseases at the Turn of the Third Millenium Elsevier Paris, France 262–268

    Google Scholar 

  • Paddock, C. D., S. M. Folk, G. M. Shorey, L. J. Machado, M. M. Huycke, L. N. Slater, A. M. Liddell, R. S. Buller, G. A. Storch, T. P. Monson, D. Rimland, J. W. Sumner, J. Singleton, K. C. Bloch, Y. W. Tang, S. M. Standaert, and J. E. Childs. 2001 Infections with Ehrlichia chaffeensis and Ehrlichia ewingii in persons coinfected with human immunodeficiency virus Clin. Infect. Dis. 33 1586–1594

    Article  PubMed  CAS  Google Scholar 

  • Palmer, G. H., A. F. Barbet, W. C. Davis, and T. C. McGuire. 1986a Immunization with an isolate-common surface protein protects cattle against anaplasmosis Science 231 1299–1302

    Article  PubMed  CAS  Google Scholar 

  • Palmer, J. E., R. H. Whitlock, and C. E. Benson. 1986b Equine ehrlichial colitis (Potomac horse fever): recognition of the disease in Pennsylvania, New Jersey, New York, Ohio, Idaho, and Connecticut J. Am. Vet. Med. Assoc. 189 197–199

    PubMed  CAS  Google Scholar 

  • Palmer, G. H., G. Eid, A. F. Barbet, T. C. Mcguire, and T. F. McElwain. 1994 The immunoprotective Anaplasma marginale major surface protein 2 is encoded by a polymorphic multigene family Infect. Immun. 62 3808–3816

    PubMed  CAS  Google Scholar 

  • Palmer, G. H., J. R. Abbott, D. M. French, and T. F. McElwain. 1998 Persistence of Anaplasma ovis infection and conservation of the msp-2 and msp-3 multigene families within the genus Anaplasma Infect. Immun. 66 6035–6039

    PubMed  CAS  Google Scholar 

  • Parker, R. R. 1938 Rocky Mountain spotted fever JAMA 110 1185–1278

    Article  Google Scholar 

  • Parker, R. R. 1941 Rocky Mountain spotted fever: Results of fifteen years’ prophylactic vaccination Am. J. Trop. Med. Hyg. 21 369–383

    Google Scholar 

  • Patterson, K. D. 1993 Typhus and its control in Russia, 1870–1940 Med. Hist. 37 361–381

    Article  PubMed  CAS  Google Scholar 

  • Perine, P. L., B. P. Chandler, D. K. Krause, P. McCardle, S. Awoke, E. Habte-Gabr, C. L. Wisseman Jr., and J. E. McDade. 1992 A clinico-epidemiological study of epidemic typhus in Africa Clin. Infect. Dis. 14 1149–1158

    Article  PubMed  CAS  Google Scholar 

  • Philip, R. N., and E. A. Casper. 1981a Serotypes of spotted fever group rickettsiae isolated from Dermacentor andersoni (Stiles) ticks in western Montana Am. J. Trop. Med. Hyg. 30 230–238

    PubMed  CAS  Google Scholar 

  • Philip, R. N., R. S. Lane, and E. A. Casper. 1981b Serotypes of tick-borne spotted fever group rickettsiae from western California Am. J. Trop. Med. Hyg. 30 722–727

    PubMed  CAS  Google Scholar 

  • Pohlman, R. F., H. D. Genetti, and S. C. Winans. 1994 Common ancestry between IncN conjugal transfer genes and macromolecular export systems of plant and animal pathogens Molec. Microbiol. 14 655–668

    Article  CAS  Google Scholar 

  • Policastro, P. F., U. G. Munderloh, E. R. Fischer, and T. Hackstadt. 1997 Rickettsia rickettsii growth and temperature-inducible protein expression in embryonic tick cell lines J. Med. Microbiol. 46 839–845

    Article  PubMed  CAS  Google Scholar 

  • Popov, V. L., V. C. Han, S. M. Chen, J. S. Dumler, H. M. Feng, T. G. Andreadis, R. B. Tesh, and D. H. Walker. 1998 Ultrastructural differentiation of the genogroups in the genus Ehrlichia J. Med. Microbiol. 47 235–251

    Article  PubMed  CAS  Google Scholar 

  • Popov, V. L., X.-J. Yu, and D. H. Walker. 2000 The 120 kDa outer membrane protein of Ehrlichia chaffeensis: preferential expression on dense-core cells and gene expression in Escherichia coli associated with attachment and entry Microb. Pathog. 28 71–80

    Article  PubMed  CAS  Google Scholar 

  • Potgieter, F. T., and L. van Rensburg. 1982 The effect of incubation and prefeeding of infected Rhipicephalus simus nymphae and adults on the transmission of Anaplasma marginale Onderstepoort J. Vet. Res. 49 99–101

    PubMed  CAS  Google Scholar 

  • Potgieter, F. T., and L. van Rensburg. 1987 Tick transmission of Anaplasma centrale Onderstepoort J. Vet. Res. 54 5–7

    PubMed  CAS  Google Scholar 

  • Rachek, L. I., A. Hines, A. M. Tucker, H. H. Winkler, and D. O. Wood. 2000 Transformation of Rickettsia prowazekii to erythromycin resistance encoded by the Escherichia coli ereB gene J. Bacteriol. 182 3289–3291

    Article  PubMed  CAS  Google Scholar 

  • Ramsey, A. H., E. A. Belongia, C. M. Gale, and J. P. Davis. 2002 Outcomes of treated human granulocytic ehrlichiosis cases Emerging Infect. Dis. 8 398–401

    Article  PubMed  Google Scholar 

  • Raoult, D., P. Zuchelli, P. J. Weiller, C. Charrel, J. L. San Marco, H. Gallais, and P. Casanova. 1986 Incidence, clinical observations and risk factors in the severe form of Mediterranean spotted fever among patients admitted to hospital in Marseilles 1983–1984 J. Infect. 12 111–116

    Article  PubMed  CAS  Google Scholar 

  • Raoult, D., and M. Drancourt. 1991 Antimicrobial therapy of rickettsial diseases Antimicrob. Agents Chemother. 35 2457–2462

    Article  PubMed  CAS  Google Scholar 

  • Raoult, D., J. B. Ndihokubwayo, H. Tissot-Dupont, B. Faugere, R. Abegbinni, and R. J. Birtles. 1998 Outbreak of epidemic typhus associated with trench fever in Burundi Lancet 352 353–358

    Article  PubMed  CAS  Google Scholar 

  • Raoult, D., P. E. Fournier, F. Fenollar, M. Jensenius, T. Prioe, J. J. De Pina, G. Caruso, N. Jones, H. Laferl, J. E. Rosenblatt, and T. J. Marrie. 2001a Rickettsia africae, a tick-borne pathogen in travelers to Sub-Saharan Africa N. Engl. J. Med. 344 1501–1510

    Article  Google Scholar 

  • Raoult, D., B. La Scola, M. Enea, P. E. Fournier, V. Roux, F. Fenollar, M. A. M. Galvao, and X. de Lamballerie. 2001b A flea-associated rickettsia pathogenic for humans Emerg. Infect. Dis. 7 73–81

    Article  PubMed  CAS  Google Scholar 

  • Reardon, M. J., and K. R. Pierce. 1981a Acute experimental canine ehrlichiosis. I: Sequential reaction of the hemic and lymphoreticular systems Vet. Pathol. 18 48–61

    PubMed  CAS  Google Scholar 

  • Reardon, M. J., and K. R. Pierce. 1981b Acute experimental canine ehrlichiosis. II: Sequential reaction of the hemic and lymphoreticular system of selectively immunosuppressed dogs Vet. Pathol. 1 384–395

    Google Scholar 

  • Reddy, G. R., C. R. Sulsona, A. F. Barbet, S. M. Mahan, M. J. Burridge, and A. R. Alleman. 1998 Molecular characterization of a 28 kDa surface antigen gene family of the tribe Ehrlichieae Biochem. Biophys. Res. Commun. 247 636–643

    Article  PubMed  CAS  Google Scholar 

  • Ribeiro, M. F., and J. D. Lima. 1996 Morphology and development of Anaplasma marginale in midgut of engorged female ticks of Boophilus microplus Vet. Parasitol. 61 31–39

    Article  PubMed  CAS  Google Scholar 

  • Rikihisa, Y., and S. Ito. 1982 Entry of Rickettsia tsutsugamushi into polymorphonuclear leukocytes Infect. Immun. 38 343–350

    PubMed  CAS  Google Scholar 

  • Rollwagen, F. M., G. A. Dasch, and T. R. Jerrells. 1986 Mechanisms of immunity to rickettsial infection: characterization of a cytotoxic effector cell J. Immunol. 136 1418–1421

    PubMed  CAS  Google Scholar 

  • Roux, V., and D. Raoult. 1995 Phylogenetic analysis of the genus Rickettsia by 16S rDNA sequencing Res. Microbiol. 146 385–396

    Article  PubMed  CAS  Google Scholar 

  • Roux, V., E. Rydkina, M. Eremeeva, and D. Raoult. 1997 Citrate synthase gene comparison, a new tool for phylogenetic analysis, and its application for the rickettsiae Int. J. Syst. Bacteriol. 47 252–261

    Article  PubMed  CAS  Google Scholar 

  • Roux, V., and D. Raoult. 1999a Body lice as tools for diagnosis and surveillance of reemerging diseases J. Clin. Microbiol. 37 596–599

    PubMed  CAS  Google Scholar 

  • Roux, V., and D. Raoult. 1999b Phylogenetic analysis and taxonomic relationships among the genus Rickettsia In: D. Raoult and P. Brouqui (Eds.) Rickettsiae and Rickettsial Diseases at the Turn of the Third Millennium Elsevier Paris, France 52–66

    Google Scholar 

  • Roux, V., and D. Raoult. 2000 Phylogenetic analysis of members of the genus Rickettsia using the gene encoding the outer-membrane protein rOmpB (ompB) Int. J. Syst. Evol. Microbiol. 50 1449–1455

    Article  PubMed  CAS  Google Scholar 

  • Ruiz-Beltran, R., J. I. Herrero Herrero, A. M. Marin Sánchez, V. Vicente Garcia, F. Sanz Ortega, A. A. Mateos Sánchez, R. Querol Prieto, and J. de Portugal Alvarez. 1985 Formas graves de fiebre exantematica Mediterranea: Analysis prospectivo de 71 enfermos Ann. Med. Interne. 2 365–368

    Google Scholar 

  • Saint, A. A., N. M. Blackwell, L. R. Hall, A. Hoerauf, N. W. Brattig, L. Volkmann, M. J. Taylor, L. Ford, A. G. Hise, J. H. Lass, E. Diaconu, and E. Pearlman. 2002 The role of endosymbiotic Wolbachia bacteria in the pathogenesis of river blindness Science 295 1892–1895

    Article  Google Scholar 

  • Salmond, G. P., and P. J. Reeves. 1993 Membrane traffic wardens and protein secretion in Gram-negative bacteria Trends Biochem. Sci. 18 7–12

    Article  PubMed  CAS  Google Scholar 

  • Samish, M., E. Pipano, and A. Hadani. 1993 Intrastadial and interstadial transmission of Anaplasma marginale by Boophilus annulatus ticks in cattle Am. J. Vet. Res. 54 411–414

    PubMed  CAS  Google Scholar 

  • Sarov, B., A. Galil, E. Sikuler, P. Yagupsky, A. Saah, A. Gilad, L. Naggan, and I. Sarov. 1990 Prospective study on symptomatic versus asymptomatic infections and serological response to spotted fever group rickettsiae in two rural sites in Negev (Southern Israel) Ann. NY Acad. Sci. 590 243–245

    Article  PubMed  CAS  Google Scholar 

  • Schaechter, M., F. M. Bozeman, and J. E. Smadel. 1957 Study on the growth of rickettsiae. II: Morphologic observations of living rickettsiae in tissue culture cells Virology 3 160–172

    Article  PubMed  CAS  Google Scholar 

  • Schauber, E. M., S. J. Gertz, W. T. Maple, and R. S. Ostfeld. 1998 Coinfection of blacklegged ticks (Acari: Ixodidae) in Dutchess County, New York, with the agents of Lyme disease and human granulocytic ehrlichiosis J. Med. Entomol. 35 901–903

    PubMed  CAS  Google Scholar 

  • Schmaier, A. H., S. Srikanth, M. T. Elghetany, D. Normolle, S. Gokhale, H.-M. Feng, and D. H. Walker. 2001 Hemostatic/fibrinolytic protein changes in C3H/HeN mice infected with Rickettsia conorii Thromb. Haemost. 86 871–879

    PubMed  CAS  Google Scholar 

  • Schouls, L. M., D. P. Van, I. S. G. Rijpkema, and C. S. Schot. 1999 Detection and identification of Ehrlichia, Borrelia burgdorferi sensu lato, and Bartonella species in Dutch Ixodes ricinus ticks J. Clin. Microbiol. 37 2215–2222

    PubMed  CAS  Google Scholar 

  • Schriefer, M. E., J. B. Sacci, Jr., J. S. Dumler, M. G. Bullen, and A. F. Azad. 1994 Identification of a novel rickettsial infection in a patient diagnosed with murine typhus J. Clin. Microbiol. 32 949–954

    PubMed  CAS  Google Scholar 

  • Schutze, G. E., and R. F. Jacobs. 1997 Human monocytic ehrlichiosis in children Pediatrics 100 127–127

    Article  Google Scholar 

  • Segal, G., and H. A. Shuman. 1997 Characterization of a new region required for macrophage killing by Legionella pneumophila Infect. Immun. 65 5057–5066

    PubMed  CAS  Google Scholar 

  • Segal, G., J. J. Russo, and H. A. Shuman. 1999 Relationships between a new type IV secretion system and the icm/dot virulence system of Legionella pneumophila Molec. Microbiol. 34 799–809

    Article  CAS  Google Scholar 

  • Seong, S. Y., M. S. Choi, and I. S. Kim. 2001a Orientia tsutsugamushi infection: Overview and immune responses Microb. Infect. 3 11–21

    Article  CAS  Google Scholar 

  • Seong, S. Y., M. K. Kim, S. M. Lee, Z. Odgerel, M. S. Choi, T. H. Han, I. S. Kim, J. S. Kang, and B. U. Lim. 2001b Neutralization epitopes on the antigenic domain II of the Orientia tsutsugamushi 56-kDa protein revealed by monoclonal antibodies Vaccine 19 2–9

    Article  Google Scholar 

  • Sexton, D. J., S. S. Kanj, K. Wilson, G. R. Corey, B. C. Hegarty, M. G. Levy, and E. B. Breitschwerdt. 1994 The use of a polymerase chain reaction as a diagnostic test for Rocky Mountain spotted fever Am. J. Trop. Med. Hyg. 50 59–63

    PubMed  CAS  Google Scholar 

  • Shirai, A., P. J. Catanzaro, S. M. Phillips, and J. V. Osterman. 1976 Host defenses in experimental scrub typhus: role of cellular immunity in heterologous protection Infect. Immun. 14 39–46

    PubMed  CAS  Google Scholar 

  • Sieira, R., D. J. Comerci, D. O. Sanchez, and R. A. Ugalde. 2000 A homologue of an operon required for DNA transfer in Agrobacterium is required in Brucella abortus for virulence and intracellular multiplication J. Bacteriol. 182 4849–4855

    Article  PubMed  CAS  Google Scholar 

  • Silpapojakul, K., S. Chupuppakarn, S. Yuthasompob, B. Varachit, D. Chaipak, and T. Borkerd. 1991a Scrub and murine typhus in children with obscure fever in the tropics Pediatr. Infect. Dis. J. 10 200–203

    Article  PubMed  CAS  Google Scholar 

  • Silpapojakul, K., C. Ukkachoke, and S. Krisanapan. 1991b Rickettsial meningitis and encephalitis Arch. Intern. Med. 151 1753–1757

    Article  PubMed  CAS  Google Scholar 

  • Silverman, D. J., and L. A. Santucci. 1988 Potential for free radical-induced lipid peroxidation as a cause of endothelial cell injury in Rocky Mountain spotted fever Infect. Immun. 56 3110–3115

    PubMed  CAS  Google Scholar 

  • Silverman, D. J., and L. A. Santucci. 1990 A potential protective role for thiols against cell injury caused by Rickettsia rickettsii Ann. NY Acad. Sci. 590 111–117

    Article  PubMed  CAS  Google Scholar 

  • Silverman, D. J., L. A. Santucci, N. Meyers, and Z. Sekeyova. 1992 Penetration of host cells by Rickettsia rickettsii appears to be mediated by a phospholipase of rickettsial origin Infect. Immun. 60 2733–2740

    PubMed  CAS  Google Scholar 

  • Silverman, D. J. 1997 Oxidative cell injury and spotted fever group rickettsiae In: B. Anderson, M. Bendinelli, and H. Friedman (Eds.) Rickettsial Infection and Immunity Plenum Press New York, NY 79–98

    Google Scholar 

  • Sims, E. J., S. E. Little, and D. E. Stallknecht. 2000 Molecular variation in isolates of Ehrlichia chaffeensis from white-tailed deer In: The Abstract of American Society for Rickettsiology 15th Meeting, Captiva Island 50

    Google Scholar 

  • Smith, R. D., D. M. Sells, E. H. Stephenson, M. R. Ristic, and D. L. Huxsoll. 1976 Development of Ehrlichia canis, causative agent of canine ehrlichiosis, in the tick Rhipicephalus sanguineus and its differentiation from a symbiotic Rickettsia Am. J. Vet. Res. 37 119–126

    PubMed  CAS  Google Scholar 

  • Sonenshine, D. E., F. M. Boseman, M. S. Williams, S. A. Masiello, D. P. Chadwick, N. I. Stocks, D. M. Lauer, and B. L. Elisberg. 1978 Epizootiology of epidemic typhus (Rickettsia prowazekii) in flying squirrels Am. J. Trop. Med. Hyg. 27 339–349

    PubMed  CAS  Google Scholar 

  • Spencer, R. R., and R. R. Parker. 1923 Rocky Mountain spotted fever: infectivity of fasting and recently fed ticks Public Health Rep. 38 333–339

    Article  Google Scholar 

  • Stachel, S. E., and E. W. Nester. 1986 The genetic and transcriptional organization of the vir region of the A6 Ti plasmid of Agrobacterium tumefaciens EMBO J. 5 1445–1454

    PubMed  CAS  Google Scholar 

  • Standaert, S. M., T. Yu, M. A. Scott, J. E. Childs, C. D. Paddock, W. L. Nicholson, J. Singleton Jr., and M. J. Blaser. 2000 Primary isolation of Ehrlichia chaffeensis from patients with febrile illnesses: clinical and molecular characteristics J. Infect. Dis. 181 1082–1088

    Article  PubMed  CAS  Google Scholar 

  • Stenos, J., V. Roux, D. H. Walker, and D. Raoult. 1998 Rickettsia honei sp. nov., the aetiological agent of Flinders Island spotted fever in Australia Int. J. Syst. Bacteriol. 48 1–6

    Article  Google Scholar 

  • Stenos, J., and D. H. Walker. 2000 The rickettsial outer-membrane protein A and B genes of Rickettsia australis, the most divergent rickettsia of the spotted fever group Int. J. Syst. Evol. Microbiol. 50 1775–1779

    PubMed  CAS  Google Scholar 

  • Stich, R. W., K. M. Kocan, G. H. Palmer, S. A. Ewing, J. A. Hair, and S. J. Barron. 1989 Transstadial and attempted transovarial transmission of Anaplasma marginale by Dermacentor variabilis Am. J. Vet. Res. 50 1377–1380

    PubMed  CAS  Google Scholar 

  • Stiller, D., K. M. Kocan, W. Edwards, S. A. Ewing, and J. A. Barron. 1989 Detection of colonies of Anaplasma marginale in salivary glands of three Dermacentor spp. infected as nymphs or adults Am. J. Vet. Res. 50 1381–1385

    PubMed  CAS  Google Scholar 

  • Storey, J. R., L. A. Doros-Richert, C. Gingrich-Baker, K. Munroe, T. N. Mather, R. T. Coughlin, G. A. Beltz, and C. I. Murphy. 1998 Molecular cloning and sequencing of three granulocytic Ehrlichia genes encoding high-molecular-weight immunoreactive proteins Infect. Immun. 66 1356–1363

    PubMed  CAS  Google Scholar 

  • Stothard, D. R., J. B. Clark, and P. A. Fuerst. 1994 Ancestral divergence of Rickettsia bellii from the spotted fever and typhus groups of rickettsia and antiquity of the genus Rickettsia Int. J. Syst. Bacteriol. 44 798–804

    Article  PubMed  CAS  Google Scholar 

  • Stothard, D. R., and P. A. Fuerst. 1995 Evolutionary analysis of the spotted fever and typhus groups of Rickettsia using 16S rRNA gene sequences Syst. Appl. Microbiol. 18 52–61

    Article  CAS  Google Scholar 

  • Stouthamer, R., J. A. Breeuwer, and G. D. Hurst. 1999 Wolbachia pipientis: microbial manipulator of arthropod reproduction Ann. Rev. Microbiol. 53 71–102

    Article  CAS  Google Scholar 

  • Strickman, D., T. Sheer, K. Salata, J. Hershey, G. Dasch, D. Kelly, and R. Kuschner. 1995 In vitro effectiveness of azithromycin against doxycycline-resistant and-susceptible strains of Rickettsia tsutsugamushi, etiologic agent of scrub typhus Antimicrob. Agents Chemother. 39 2406–2410

    Article  PubMed  CAS  Google Scholar 

  • Sugita, Y., Y. Yamakawa, K. Takahashi, T. Nagatani, K. Okuda, and H. Nakajima. 1993 A polymerase chain reaction system for rapid diagnosis of scrub typhus within six hours Am. J. Trop. Med. Hyg. 49 636–640

    PubMed  CAS  Google Scholar 

  • Sulsona, C. R., S. M. Mahan, and A. F. Barbet. 1999 The map1 gene of Cowdria ruminantium is a member of a multigene family containing both conserved and variable genes Biochem. Biophys. Res. Commun. 257 300–305

    Article  PubMed  CAS  Google Scholar 

  • Sumner, J. W., K. G. Sims, D. C. Jones, and B. E. Anderson. 1995 Protection of guinea-pigs from experimental Rocky Mountain spotted fever by immunization with baculovirus-expressed Rickettsia rickettsii rOmpA protein Vaccine 13 29–35

    Article  PubMed  CAS  Google Scholar 

  • Tamura, A., N. Ohashi, H. Urakami, and S. Miyamura. 1995 Classification of Rickettsia tsutsugamushi in a new genus, Orientia gen. nov., as Orientia tsutsugamushi comb. nov Int. J. Syst. Bacteriol. 45 589–591

    Article  PubMed  CAS  Google Scholar 

  • Telford 3rd, S. R., J. E. Dawson, P. Katavolos, C. K. Warner, C. P. Kolbert, and D. H. Persing. 1996 Perpetuation of the agent of human granulocytic ehrlichiosis in a deer tick-rodent cycle Proc. Natl. Acad. Sci. USA 93 6209–6214

    Article  PubMed  CAS  Google Scholar 

  • Teysseire, N., C. Chiche-Portiche, and D. Raoult. 1992 Intracellular movements of Rickettsia conorii and R. typhi based on actin polymerization Res. Microbiol. 143 821–829

    Article  PubMed  CAS  Google Scholar 

  • Traub, R., and C. L. Wisseman Jr. 1974 The ecology of chigger-borne rickettsiosis (scrub typhus) J. Med. Entomol. 11 237–303

    PubMed  CAS  Google Scholar 

  • Troyer, J. M., S. Radulovic, and A. F. Azad. 1999 Green fluorescent protein as a marker in Rickettsia typhi transformation Infect. Immun. 67 3308–3311

    PubMed  CAS  Google Scholar 

  • Tsay, R. W., and F. Y. Chang. 2002 Serious complications in scrub typhus J. Microbiol. Immunol. Infect. 31 240–244

    Google Scholar 

  • Tsuruhara, T., H. Urakami, and A. Tamura. 1982 Surface morphology of Rickettsia tsutsugamushi-infected mouse fibroblasts Acta Virol. 26 506–511

    PubMed  CAS  Google Scholar 

  • Tzianabos, T., B. E. Anderson, and J. E. McDade. 1989 Detection of Rickettsia rickettsii DNA in clinical specimens by using polymerase chain reaction technology J. Clin. Microbiol. 27 2866–2868

    PubMed  CAS  Google Scholar 

  • Uchiyama, T. 1999 Role of major surface antigens of Rickettsia japonica in the attachment to host cells In: R. Raoult and P. Brouqui (Eds.) Rickettsiae and Rickettsial Diseases at the Turn of the Third Millennium Elsevier Paris, France 182–188

    Google Scholar 

  • Valbuena, G., H. M. Feng, and D. H. Walker. 2002 Mechanisms of immunity against rickettsiae: New perspectives and opportunities offered by unusual intracellular parasites Microb. Infect. 4 625–633

    Article  CAS  Google Scholar 

  • Vallis, A. J., V. Finck-Barbancon, T. L. Yahr, and D. W. Frank. 1999 Biological effects of Pseudomonas aeruginosa type III-secreted proteins on CHO cells Infect. Immun. 67 2040–2044

    PubMed  CAS  Google Scholar 

  • Vemulapalli, R., B. Biswas, and S. K. Dutta. 1995 Pathogenic, immunologic, and molecular differences between two Ehrlichia risticii strains J. Clin. Microbiol. 33 2987–2993

    PubMed  CAS  Google Scholar 

  • Viseshakul, N., S. Kamper, M. V. Bowie, and A. F. Barbet. 2000 Sequence and expression analysis of a surface antigen gene family of the rickettsia Anaplasma marginale Gene 253 45–53

    Article  PubMed  CAS  Google Scholar 

  • Vishwanath, S. 1991 Antigenic relationships among the rickettsiae of the spotted fever and typhus groups FEMS Microbiol. Lett. 81 341–344

    Article  Google Scholar 

  • Walker, D. H., and W. D. Mattern. 1979 Acute renal failure in Rocky Mountain spotted fever Arch. Intern. Med. 139 443–448

    Article  PubMed  CAS  Google Scholar 

  • Walker, D. H., and B. G. Cain. 1980a The rickettsial plaque: evidence for direct cytopathic effect of Rickettsia rickettsii Lab. Invest. 43 388–396

    PubMed  CAS  Google Scholar 

  • Walker, D. H., M. S. Burday, and J. D. Folds. 1980b Laboratory diagnosis of Rocky Mountain spotted fever South. Med. J. 73 1443–1447

    Article  PubMed  CAS  Google Scholar 

  • Walker, D. H., C. G. Crawford, and B. G. Cain. 1980c Rickettsial infection of the pulmonary microcirculation: the basis for interstitial pneumonitis in Rocky Mountain spotted fever Human Pathol. 11 263–272

    Article  CAS  Google Scholar 

  • Walker, D. H., R. M. Gay, and M. Valdes-Dapena. 1981 The occurrence of eschars in Rocky Mountain spotted fever J. Am. Acad. Dermatol. 4 571–576

    Article  PubMed  CAS  Google Scholar 

  • Walker, D. H., H. K. Hawkins, and P. Hudson. 1983a Fulminant Rocky Mountain spotted fever: Its pathologic characteristics associated with glucose-6-phosphate dehydrogenase deficiency Arch. Pathol. Lab. Med. 107 121–125

    PubMed  CAS  Google Scholar 

  • Walker, D. H., W. T. Firth, J. G. Ballard, and B. C. Hegarty. 1983b Role of phospholipase-associated penetration mechanism in cell injury by Rickettsia rickettsii Infect. Immun. 40 840–842

    PubMed  CAS  Google Scholar 

  • Walker, T. S. 1984a Rickettsial interactions with human endothelial cells in vitro: Adherence and entry Infect. Immun. 44 205–210

    PubMed  CAS  Google Scholar 

  • Walker, D. H., R. R. Tidwell, T. M. Rector, and J. D. Geratz. 1984b Effect of synthetic protease inhibitors of the amidine type on cell injury by Rickettsia rickettsii Antimicrob. Agents Chemother. 25 582–585

    Article  PubMed  CAS  Google Scholar 

  • Walker, J. B., and A. Olwage. 1987 The tick vectors of Cowdria ruminantium (Ixodoidea, Ixodidae, genus Amblyomma) and their distribution Onderstepoort J. Vet. Res. 54 353–379

    PubMed  CAS  Google Scholar 

  • Walker, D. H. 1988a Pathology and pathogenesis of the vasculotropic rickettsioses In: D. H. Walker (Ed.) Biology of Rickettsial Diseases CRC Press Boca Raton, FL 115–138

    Google Scholar 

  • Walker, D. H., C. Occhino, G. R. Tringali, S. Di Rosa, and S. Mansueto. 1988b Pathogenesis of rickettsial eschars: the tache noire of boutonneuse fever Human Pathol. 19 1449–1454

    Article  CAS  Google Scholar 

  • Walker, D. H. 1989a Rocky Mountain spotted fever: a disease in need of microbiological concern Clin. Microbiol. Rev. 2 227–240

    PubMed  CAS  Google Scholar 

  • Walker, D. H., F. M. Parks, T. G. Betz, J. P. Taylor, and J. W. Muehlberger. 1989b Histopathology and immunohistologic demonstration of the distribution of Rickettsia typhi in fatal murine typhus Am. J. Clin. Pathol. 91 720–724

    PubMed  CAS  Google Scholar 

  • Walker, D. H. 1990 The role of host factors in the severity of spotted fever and typhus rickettsioses Ann. NY Acad. Sci. 590 10–19

    Article  PubMed  CAS  Google Scholar 

  • Walker, D. H., H. M. Feng, J. I. Saada, P. Crocquet-Valdes, S. Radulovic, V. L. Popov, and E. Manor. 1995 Comparative antigenic analysis of spotted fever group rickettsiae from Israel and other closely related organisms Am. J. Trop. Med. Hyg. 52 569–576

    PubMed  CAS  Google Scholar 

  • Walker, D. H. 1996a Rickettsiae In: S. Baron (Ed.) Medical Microbiology University of Texas Medical Branch Galveston, TX 487–501

    Google Scholar 

  • Walker, D. H. 1996b Rickettsial diseases In: D. J. Weatherall, J. G. G. Ledingham, and D. A. Warrell (Eds.) Oxford Textbook of Medicine Oxford University Press Oxford, UK 728–739

    Google Scholar 

  • Walker, D. H., H.-M. Feng, S. Ladner, A. N. Billings, S. R. Zaki, D. J. Wear, and B. Hightower. 1997 Immunohistochemical diagnosis of typhus rickettsioses using an anti-lipopolysaccharide monoclonal antibody Mod. Pathol. 10 1038–1042

    PubMed  CAS  Google Scholar 

  • Walker, D. H., and D. J. Sexton. 1999a Rickettsia rickettsii In: V. L. Yu, T. C. Merigan, and S. L. Barriere (Eds.) Antimicrobial Therapy and Vaccines Williams and Wilkins Baltimore, MD 562–568

    Google Scholar 

  • Walker, D. H., S. Hudnall, W. Szaniawski, and H. M. Feng. 1999b Monoclonal antibody-based immunohistochemical diagnosis of rickettsialpox: The macrophage is the principal target Mod. Pathol. 12 529–533

    PubMed  CAS  Google Scholar 

  • Walker, D. H. 2001 Typhus group rickettsioses In: Tropical Infectious Diseases, Principles, Pathogens, and Practice Churchill Livingstone Philadelphia, PA 585–591

    Google Scholar 

  • Walker, D. H., H. M. Feng, and V. L. Popov. 2002 Rickettsial phospholipase A2 as a pathogenic mechanism in a model of cell injury by typhus and spotted fever group rickettsiae Am. J. Trop. Med. Hyg. 65 936–942

    Google Scholar 

  • Watt, G., C. Chouriyagune, R. Ruangweerayud, P. Watcharapichat, D. Phulsuksombati, K. Jongsakul, P. Teja-Isavadharm, D. Bhodidatta, K. D. Corcoran, G. A. Dasch, and D. Strickman. 1996 Scrub typhus infections poorly responsive to antibiotics in northern Thailand Lancet 348 86–89

    Article  PubMed  CAS  Google Scholar 

  • Watt, G., P. Kantipong, K. Jongsakul, P. Watcharapichat, and D. Phulsuksombati. 1999 Azithromycin activities against Orientia tsutsugamushi strains isolated in cases of scrub typhus in northern Thailand Antibiot. Chemother. 43 2817–2818

    CAS  Google Scholar 

  • Watt, G., and D. H. Walker. 2001 Scrub typhus In: Tropical Infectious Diseases, Principles, Pathogens, and Practice Churchill Livingstone Philadelphia, PA 592–597

    Google Scholar 

  • Watt, G., P. Kantipong, K. Jongsakul, P. Watcharapichat, D. Phulsuksombati, and D. Strickman. 2002 Doxycycline and rifampicin for mild scrub-typhus infections in northern Thailand: A randomised trial Lancet 356 1057–1061

    Article  Google Scholar 

  • Weddle, J. R., T. C. Chan, K. Thompson, H. Paxton, D. J. Kelly, G. Dasch, and D. Strickman. 1995 Effectiveness of a dot-blot immunoassay of anti-Rickettsia tsutsugamushi antibodies for serologic analysis of scrub typhus Am. J. Trop. Med. Hyg. 53 43–46

    PubMed  CAS  Google Scholar 

  • Weiss, A. A., F. D. Johnson, and D. L. Burns. 1993 Molecular characterization of an operon required for pertussis toxin secretion Proc. Natl. Acad. Sci. USA 90 2970–2974

    Article  PubMed  CAS  Google Scholar 

  • Wells, M. Y., and Y. Rikihisa. 1988 Lack of lysosomal fusion with phagosomes containing Ehrlichia risticii in P388D1 cells: Abrogation of inhibition with oxytetracycline Infect. Immun. 56 3209–3215

    PubMed  CAS  Google Scholar 

  • Wen, B., Y. Rikihisa, J. Mott, P. A. Fuerst, M. Kawahara, and C. Suto. 1995 Ehrlichia muris sp. nov., identified on the basis of 16S rRNA base sequences and serological, morphological, and biological characteristics Int. J. Syst. Bacteriol. 45 250–254

    Article  PubMed  CAS  Google Scholar 

  • Whiteford, S. F., J. P. Taylor, and J. S. Dumler. 2001 Clinical, laboratory, and epidemiologic features of murine typhus in 97 Texas children Arch. Pediatr. Adolesc. Med. 155 396–400

    PubMed  CAS  Google Scholar 

  • Wike, D. A., and W. Burgdorfer. 1972 Plaque formation in tissue cultures by Rickettsia rickettsi isolated directly from whole blood and tick hemolymph Infect. Immun. 6 736–738

    PubMed  CAS  Google Scholar 

  • Williams, W. J., S. Radulovic, G. A. Dasch, J. Lindstrom, D. J. Kelly, C. N. Oster, and D. H. Walker. 1994 Identification of Rickettsia conorii infection by polymerase chain reaction in a soldier returning from Somalia Clin. Infect. Dis. 19 93–99

    Article  PubMed  CAS  Google Scholar 

  • Winans, S. C., and G. C. Walker. 1985 Conjugal transfer system of the IncN plasmid pKM101 J. Bacteriol. 161 402–410

    PubMed  CAS  Google Scholar 

  • Winkler, H. H., and E. T. Miller. 1982 Phospholipase A and the interaction of Rickettsia prowazekii and mouse fibroblasts (L-929 cells) Infect. Immun. 38 109–113

    PubMed  CAS  Google Scholar 

  • Winkler, H. H., and R. M. Daugherty. 1989 Phospholipase A activity associated with the growth of Rickettsia prowazekii in L929 cells Infect. Immun. 57 36–40

    PubMed  CAS  Google Scholar 

  • Winkler, H. H., L. Day, and R. Daugherty. 1994 Analysis of hydrolytic products from choline-labeled host cell phospholipids during growth of Rickettsia prowazekii Infect. Immun. 62 1457–1459

    PubMed  CAS  Google Scholar 

  • Wolbach, S. B., J. L. Todd, and F. W. Palfrey. 1922 Pathology of typhus in man In: The Etiology and Pathology of Typhus League of Red Cross Societies at the Harvard University Press Cambridge, MA 152–221

    Google Scholar 

  • Wolf, Y. I., L. Aravind, and E. V. Koonin. 1999 Rickettsiae and chlamydiae: evidence of horizontal gene transfer and gene exchange Trends Genet. 15 173–175

    Article  PubMed  CAS  Google Scholar 

  • Wolf, L., T. McPherson, B. Harrison, B. Engber, A. Anderson, and P. Whitt. 2000 Prevalence of Ehrlichia ewingii in Amblyomma americanum in North Carolina J. Clin. Microbiol. 38 2795

    PubMed  CAS  Google Scholar 

  • Woodward, T. E. 1988 Murine typhus fever: its clinical and biologic similarity to epidemic typhus In: D. H. Walker (Ed.) Biology of Rickettsial Diseases CRC Press Boca Raton, FL 79–92

    Google Scholar 

  • Yu, X. J., P. Brouqui, J. S. Dumler, and D. Raoult. 1993 Detection of Ehrlichia chaffeensis in human tissue by using a species-specific monoclonal antibody J. Clin. Microbiol. 31 3284–3288

    PubMed  CAS  Google Scholar 

  • Yu, X. J., P. Crocquet-Valdes, and D. H. Walker. 1997 Cloning and sequencing of the gene for a 120-kDa immunodominant protein of Ehrlichia chaffeensis Gene 184 149–154

    Article  PubMed  CAS  Google Scholar 

  • Yu, X. J., J. W. McBride, and D. H. Walker. 1999 Characterization of the genus-common outer membrane proteins in Ehrlichia In: D. Raoult and P. Brouqui (Eds.) Rickettsiae and Rickettsial Diseases at the Turn of the Third Millennium Elsevier Paris, France 103–107

    Google Scholar 

  • Yu, X. J., J. W. McBride, C. M. Diaz, and D. H. Walker. 2000a Molecular cloning and characterization of the 120-kilodalton protein gene of Ehrlichia canis and application of the recombinant 120-kilodalton protein for serodiagnosis of canine ehrlichiosis J. Clin. Microbiol. 38 369–374

    PubMed  CAS  Google Scholar 

  • Yu, X. J., J. W. McBride, X. Zhang, and D. H. Walker. 2000b Characterization of the complete transcriptionally active Ehrlichia chaffeensis 28 kDa outer membrane protein multigene family Gene 248 59–68

    Article  PubMed  CAS  Google Scholar 

  • Yu, X. J., X. F. Zhang, V. L. Popov, and I. Aravind. 2000c Characterization of a surface protein of Rickettsia prowazekii containing sequence similar to the catalytic domain of phospholipase A2 In: Program and Abstract of the 49th Annual Meeting of the American Society of Tropical Medicine and Hygiene 339

    Google Scholar 

  • Yu, X. J., X. F. Zhang, J. W. McBride, Y. Zhang, and D. H. Walker. 2001 Phylogenetic relationships of Anaplasma marginale and “Ehrlichia platys” to other Ehrlichia species determined by GroEL amino acid sequences Int. J. Syst. Evol. Microbiol. 51 1143–1146

    Article  PubMed  CAS  Google Scholar 

  • Zaugg, J. L., D. Stiller, M. E. Coan, and S. D. Lincoln. 1986 Transmission of Anaplasma marginale Theiler by males of Dermacentor andersoni Stiles fed on an Idaho field-infected, chronic carrier cow Am. J. Vet. Res. 47 2269–2271

    PubMed  CAS  Google Scholar 

  • Zavala-Velazquez, J. E., J. A. Ruiz-Sosa, R. A. Sanchez-Elias, G. Becerra-Carmona, and D. H. Walker. 2000 Rickettsia felis rickettsiosis in Yucatan Lancet 356 1079–1080

    Article  PubMed  CAS  Google Scholar 

  • Zhang, J. Z., M. Y. Fan, X.-J. Yu, and D. Raoult. 2000 Phylogenetic analysis of the Chinese rickettsia isolate BJ-90 Emerg. Infect. Dis. 6 432–432

    Article  PubMed  CAS  Google Scholar 

  • Zimmer, C. 2001 Wolbachia: A tale of sex and survival Science 292 1093–1095

    Article  PubMed  CAS  Google Scholar 

  • Zinsser, H., and M. R. Castaneda. 1933 On the isolation from a case of Brill’s disease of a typhus strain resembling the European type N. Engl. J. Med. 209 815–819

    Article  Google Scholar 

  • Zinsser, H. 1935 Rats, Lice and History Little, Brown New York, NY 1–301

    Google Scholar 

Download references

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2006 Springer-Verlag

About this entry

Cite this entry

Yu, XJ., Walker, D.H. (2006). The Order Rickettsiales. In: Dworkin, M., Falkow, S., Rosenberg, E., Schleifer, KH., Stackebrandt, E. (eds) The Prokaryotes. Springer, New York, NY. https://doi.org/10.1007/0-387-30745-1_20

Download citation

Publish with us

Policies and ethics