Skip to main content
Log in

A Case of Equine Granulocytic Ehrlichiosis Provides Molecular Evidence for the Presence of Pathogenic Anaplasma phagocytophilum (HGE Agent) in Germany

  • Concise Article
  • Published:
European Journal of Clinical Microbiology and Infectious Diseases Aims and scope Submit manuscript

Abstract

Based on seroprevalence studies and tick infection rates, tick-borne human granulocytic ehrlichiosis (HGE) is thought to occur in Germany, but to date no clinical case has been detected. Reported here are the first ehrlichial sequences derived from a German horse that fell ill with granulocytic ehrlichiosis. The analysis of three different genes (16S rRNA gene, groESL, and ankA) revealed up to 100% identity with ehrlichial sequences derived from patients with HGE in other countries or from infected ticks in Germany. Thus, the current lack of clinical cases of HGE in Germany is unlikely to result from the absence of pathogenic granulocytic ehrlichiae strains in German ticks.

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

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Bakken JS, Dumler JS (2000) Human granulocytic ehrlichiosis. Clin Infect Dis 31:554–560

    Article  CAS  PubMed  Google Scholar 

  2. Dumler JS, Barbet AF, Bekker CPJ, Dasch GA, Palmer GH, Ray SC, Rikihisa Y, Rurangirwa FR (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

    CAS  PubMed  Google Scholar 

  3. Gribble DH (1969) Equine ehrlichiosis. J Am Vet Med Assoc 155:462–469

    CAS  PubMed  Google Scholar 

  4. Madigan JE, Barlough JE, Dumler JS, Schankman NS, DeRock E (1996) Equine granuolocytic ehrlichiosis in Connecticut caused by an agent resembling the human granulocytotropic Ehrlichia. J Clin Microbiol 38:2917–2922

    Google Scholar 

  5. Bermann F, Davoust B, Fournier PE, Brisou-Lapointe AV, Brouqui P (2002) Ehrlichia equi (Anaplasma phagocytophila) infection in an adult horse in France. Vet Rec 150:787–788

    CAS  PubMed  Google Scholar 

  6. Büscher G, Gandras R, Apel G, Friedhoff KT (1984) Der erste Fall von Ehrlichiosis beim Pferd in Deutschland. Dtsch Tierärtzl Wochenschr 91:408–409

  7. Engvall EO, Pettersson B, Persson M, Artursson K, Johansson K-E (1996) A 16S rRNA-based PCR assay for detection and identification of granulocytic Ehrlichia species. J Clin Microbiol 34:2170–2174

    CAS  PubMed  Google Scholar 

  8. Herrmann M, Baumann D, Lutz H, Wild P (1985) Erster diagnostizierter Fall von equiner Ehrlichiose in der Schweiz. Pferdeheilkunde 1:247–250

    Google Scholar 

  9. Johansson K-H, Pettersson B, Uhlen M, Gunnarsson A, Malmqvist M, Olsson E (1995) Identification of the causative agent of granulocytic ehrlichiosis in Swedish dogs and horses by direct solid phase sequencing of PCR products from the 16S rRNA gene. Res Vet Sci 58:109–112

    CAS  PubMed  Google Scholar 

  10. Korbutiak E, Schneiders D (1994) Equine granulocytic ehrlichiosis in the UK. Vet Rec 15:387–388

    Google Scholar 

  11. McNamee PT, Cule AP, Donnelly J (1989) Suspected ehrlichiosis in a gelding in Wales. Vet Rec 124:634–635

    CAS  PubMed  Google Scholar 

  12. Pusterla N, Huder JB, Feige K, Lutz H (1998) Identification of a granulocytic Ehrlichia strain isolated from a horse in Switzerland and comparison with other rickettsiae of the Ehrlichia phagocytophila genogroup. J Clin Microbiol 36:2035–2037

    CAS  PubMed  Google Scholar 

  13. Shaw S, Kenny M, Taylor F, Day M, Birtles R, Pearse C (2001) Equine granulocytic ehrlichiosis in the UK. Vet Rec 149:127–128

    CAS  Google Scholar 

  14. Chen S-M, Dumler JS, Bakken JS, Walker DH (1994) Identification of a granulocytotropic Ehrlichia species as the etiologic agent of human disease. J Clin Microbiol 32:589–595

    CAS  PubMed  Google Scholar 

  15. Petrovec M, Lotric-Furlan S, Avsic Zupanc T, Strle F, Brouqui P, Roux V, Dumler JS (1997) Human disease in Europe caused by a granulocytic Ehrlichia species. J Clin Microbiol 35:1556–1559

    CAS  PubMed  Google Scholar 

  16. Fingerle V, Goodmann JL, Johnson RC, Kurtti TJ, Munderloh UG, Wilske B (1997) Human granulocytic ehrlichiosis in southern Germany: increased seroprevalence in high-risk groups. J Clin Microbiol 35:3244–3247

    CAS  PubMed  Google Scholar 

  17. Hunfeld K-P, Brade V (1999) Prevalence of antibodies against the human granulocytic ehrlichiosis agent in Lyme borreliosis patients from Germany. Eur J Clin Microbiol Infect Dis 18:221–224

    Article  CAS  PubMed  Google Scholar 

  18. Baumgarten BU, Röllinghoff M, Bogdan C (1999) Prevalence of Borrelia burgdorferi and granulocytic and monocytic ehrlichiae in Ixodes ricinus ticks from southern Germany. J Clin Microbiol 37:3448–3451

    CAS  PubMed  Google Scholar 

  19. Fingerle V, Munderloh UG, Liegl G, Wilske B (1999) Coexistence of ehrlichiae of the phagocytophila group with Borrelia burgdorferi in Ixodes ricinus from southern Germany. Med Microbiol Immunol 188:145–149

    Article  CAS  PubMed  Google Scholar 

  20. Madigan JE (1993) Equine ehrlichiosis. Vet Clin N Am Equine Pract 9:423–428

    CAS  Google Scholar 

  21. Caturegli P, Asanovich KM, Walls JJ, Bakken JS, Madigan JE, Popov VL, Dumler JS (2000) ankA: an Ehrlichia phagocytophila group gene encoding a cytoplasmic protein antigen with ankyrin repeats. Infect Immun 68:5277–5283

    Article  CAS  PubMed  Google Scholar 

  22. Chae J-S, Foley JE, Dumler JS, Madigan JE (2000) Comparison of the nucleotide sequences of 16S rRNA, 444 Ep-ank, and groESL heat shock operon genes in naturally occuring Ehrlichia equi and human granulocytic ehrlichiosis agent isolates from Northern California. J Clin Microbiol 38:1364–1369

    CAS  PubMed  Google Scholar 

  23. Lotric-Furlan S, Petrovec M, Avsic Zupanc T, Nicholson WL, Sumner JW, Childs JE, Strle F (1998) Human granulocytic ehrlichiosis in Europe: clinical and laboratory findings in four patients from Slovenia. Clin Infect Dis 27:424–428

    CAS  PubMed  Google Scholar 

  24. Massung RF, Owens JH, Ross D, Reed KD, Petrovec M, Bjöersdorff A, Coughlin RT, Beltz GA, Murphy CI (2000) Sequence analysis of the ank gene of granulocytic ehrlichiae. J Clin Microbiol 38:2917–2922

    CAS  PubMed  Google Scholar 

  25. Sumner JW, Nicholson WL, Massung RF (1997) PCR amplification and comparison of nucleotide sequences from the groESL heat shock operon of Ehrlichia species. J Clin Microbiol 35:2087–2092

    CAS  PubMed  Google Scholar 

  26. Petrovec M, Sumner JW, Nicholson WL, Childs JE, Strle F, Barlic J, Lotric-Furlan S, Avsic Zupanc T (1999) Identitiy of ehrlichial DNA sequences derived from Ixodes ricinus ticks with those obtained from patients with human granulocytic ehrlichiosis in Slovenia. J Clin Microbiol 37:209–210

    CAS  PubMed  Google Scholar 

  27. Pearson WR, Wood T, Zhang Z, Miller W (1997) Comparison of DNA sequences with protein sequences. Genomics 46:24–36

    CAS  PubMed  Google Scholar 

Download references

Acknowledgements

This work was supported by grants from the German Ministry for Education and Research, the Interdisciplinary Center for Clinical Research of the Friedrich-Alexander University Erlangen (Project A14) and from the German Research Foundation (SFB263 project A5).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to C. Bogdan.

Rights and permissions

Reprints and permissions

About this article

Cite this article

von Loewenich, F.D., Stumpf, G., Baumgarten, B.U. et al. A Case of Equine Granulocytic Ehrlichiosis Provides Molecular Evidence for the Presence of Pathogenic Anaplasma phagocytophilum (HGE Agent) in Germany. Eur J Clin Microbiol Infect Dis 22, 303–305 (2003). https://doi.org/10.1007/s10096-003-0935-1

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10096-003-0935-1

Keywords

Navigation