Abstract
Blastomyces dermatitidis, the etiologic agent of blastomycosis, is endemic to certain areas of North America and other continents and can cause a variety of clinical manifestations that range from subclinical to life-threatening infections. Delineation of its ecology and epidemiology has been difficult because of the lack of rapid, sensitive, and specific noninvasive diagnostic tests. Despite efforts to develop such tests for clinical use, diagnosis of infection is still based on direct visualization of the organism in histopathologic or cytologic specimens and growth in the microbiologic laboratory. Serologic tests and skin testing have been hampered by low sensitivity and specificity caused by cross-reactivity with other endemic mycoses and are not commercially available. An antigen assay is now commercially available, but it also has significant cross-reactivity with other mycoses, especially histoplasmosis. The keys to diagnosis remain a high index of suspicion and knowledge of the disease’s varied clinical manifestations.
Similar content being viewed by others
References and Recommended Reading
Gilchrist TC: Protozoan dermatitis. J Cutaneous Gen Dis 1894, 12:496–499.
Gilchrist TC, Stokes WR: Case of pseudo-lupus vulgaris caused by blastomyces. J Exp Med 1898, 3:53–78.
Sarosi GA, Davies SF: Blastomycosis. Am Rev Respir Dis 1979, 120:911–938.
Klein BS, Vergeront JM, Weeks RJ, et al.: Isolation of Blastomyces dermatitidis in soil associated with a large outbreak of blastomycosis in Wisconsin. N Engl J Med 1986, 314:529–534.
Klein BS, Vergeront JM, DiSalvo AF, et al.: Two outbreaks of blastomycosis along rivers in Wisconsin: isolation of Blastomyces dermatitidis from riverbank soil and evidence of its transmission along waterways. Am Rev Respir Dis 1987, 136:1333–1338.
Klein BS, Vergeront JM, Davis JP: Epidemiologic aspects of blastomycosis, the enigmatic systemic mycosis. Semin Respir Infect 1986, 1:29–39.
Baumgardner DJ, Burdick JS: An outbreak of human and canine blastomycosis. Rev Infect Dis 1991, 13:898–905.
Baumgardner DJ, Buggy BP, Mattson BJ, et al.: Epidemiology of blastomycosis in a region of high endemicity in north central Wisconsin. Clin Infect Dis 1992, 15:629–635.
Baumgardner DJ, Brockman K: Epidemiology of human blastomycosis in Vilas County, Wisconsin. II: 1991–1996. WMJ 1998, 97:44–47.
Dwight PJ, Naus M, Sarsfield P, Limerick B: An outbreak of human blastomycosis: the epidemiology of blastomycosis in the Kenora catchment region of Ontario, Canada. Can Commun Dis Rep 2000, 26:82–91.
Proctor ME, Klein BS, Jones JM, Davis JP: Cluster of pulmonary blastomycosis in a rural community: evidence for multiple high-risk environmental foci following a sustained period of diminished precipitation. Mycopathologia 2002, 153:113–120.
Morris SK, Brophy J, Richardson SE, et al.: Blastomycosis in Ontario, 1994–2003. Emerg Infect Dis 2006, 12:274–279.
Bradsher RW, Chapman SW, Pappas PG: Blastomycosis. Infect Dis Clin North Am 2003, 17:21–40.
Kauffman CA: Endemic mycoses: blastomycosis, histoplasmosis, and sporotrichosis. Infect Dis Clin North Am 2006, 20:645–662.
Turner S, Kaufman L, Jalbert M: Diagnostic assessment of an enzyme-linked immunosorbent assay for human and canine blastomycosis. J Clin Microbiol 1986, 23:294–297.
Bradsher RW, Rice DC, Abernathy RS: Ketoconazole therapy of endemic blastomycosis. Ann Intern Med 1985, 103:872–879.
Klein BS, Vergeront JM, Kaufman L, et al.: Serological tests for blastomycosis: assessments during a large point-source outbreak in Wisconsin. J Infect Dis 1987, 155:262–268.
Klein BS, Kuritsky JN, Chappell WA, et al.: Comparison of the enzyme immunoassay, immunodiffusion, and complement fixation tests in detecting antibody in human serum to the A antigen of Blastomyces dermatitidis. Am Rev Respir Dis 1986, 133:144–148.
Bradsher RW, Pappas PG: Detection of specific antibodies in human blastomycosis by enzyme immunoassay. South Med J 1995, 88:1256–1259.
Klein BS, Jones JM: Purification and characterization of the major antigen WI-1 from Blastomyces dermatitidis yeasts and immunological comparison with A antigen. Infect Immun 1994, 62:3890–3900.
Klein BS, Jones JM: Isolation, purification, and radiolabeling of a novel 120-kD surface protein on Blastomyces dermatitidis yeasts to detect antibody in infected patients. J Clin Invest 1990, 85:152–161.
Soufleris AJ, Klein BS, Courtney BT, et al.: Utility of anti-WI-1 serological testing in the diagnosis of blastomycosis in Wisconsin residents. Clin Infect Dis 1994, 19:87–92.
Spector D, Legendre AM, Wheat J, et al.: Antigen and antibody testing for the diagnosis of blastomycosis in dogs. J Vet Intern Med 2008, 22:839–843.
Seawell BW, Scalarone GM: Comparison of enzyme immunoassay and immunodiffusion for the detection of canine blastomycosis. Mycoses 1990, 33:375–381.
Seawell BW, Legendre AM, Scalarone GM: Enzyme immunoassay detection of antibodies in canine blastomycosis using Blastomyces dermatitidis lysate antigens. Mycoses 1990, 33:483–489.
Axtell RC, Scalarone GM: Serological differences in two Blastomyces dermatitidis isolates from different geographical regions of North America. Mycopathologia 2001, 153:141–144.
Chester EM, Axtell RC, Scalarone GM: Blastomyces dermatitidis lysate antigens: antibody detection in serial serum specimens from dogs with blastomycosis. Mycopathologia 2003, 156:289–294.
Abuodeh RO, Chester EM, Scalarone GM: Comparative serological evaluation of 10 Blastomyces dermatitidis yeast phase lysate antigens from different sources. Mycoses 2004, 47:143–149.
Klein BS, Squires RA, Lloyd JK, et al.: Canine antibody response to Blastomyces dermatitidis WI-1 antigen. Am J Vet Res 2000, 61:554–558.
Wuthrich M, Filutowicz HI, Klein BS: Mutation of the WI-1 gene yields an attenuated Blastomyces dermatitidis strain that induces host resistance. J Clin Invest 2000, 106:1381–1389.
Wuthrich M, Filutowicz HI, Warner T, Klein BS: Requisite elements in vaccine immunity to Blastomyces dermatitidis: plasticity uncovers vaccine potential in immune-deficient hosts. J Immunol 2002, 169:6969–6976.
Witorsch P, Utz JP: North American blastomycosis: a study of 40 patients. Medicine 1968, 47:169–200.
Busey JF: Blastomycosis. 3. A comparative study of 2-hydroxystilbamidine and amphotericin B therapy. Am Rev Respir Dis 1972, 105:812–818.
Bradsher RW, Alford RH: Blastomyces dermatitidis antigen-induced lymphocyte reactivity in human blastomycosis. Infect Immun 1981, 33:485–490.
Vaaler AK, Bradsher RW, Davies SF: Evidence of subclinical blastomycosis in forestry workers in northern Minnesota and northern Wisconsin. Am J Med 1990, 89:470–476.
Klein BS, Bradsher RW, Vergeront JM, Davis JP: Development of long-term specific cellular immunity after acute Blastomyces dermatitidis infection: assessments following a large point-source outbreak in Wisconsin. J Infect Dis 1990, 161:97–101.
Perfect JR: Cryptococcus neoformans. In Principles and Practice of Infectious Diseases. Edited by Mandell GL, Bennett JE, Dolin R. Philadelphia: Elsevier; 2005:2997–3012.
Kauffman CA: Histoplasmosis: a clinical and laboratory update. Clin Microbiol Rev 2007, 20:115–132.
Verdaquer V, Walsh TJ, Hope W, Cortez KJ: Galactomannan antigen detection in the diagnosis of invasive aspergillosis. Expert Rev Mol Diagn 2007, 7:21–32.
Kuberski T, Myers R, Wheat LJ, et al.: Diagnosis of coccidioidomycosis by antigen detection using cross-reaction with a Histoplasma antigen. Clin Infect Dis 2007, 44:e50–e54.
Mennink-Kersten MA, Verweij PE: Non-culture-based diagnostics for opportunistic fungi. Infect Dis Clin North Am 2006, 20:711–727.
Wheat LJ, Freifeld AG, Kleiman MB, et al.: Clinical practice guidelines for the management of patients with histoplasmosis: 2007 update by the Infectious Diseases Society of America. Clin Infect Dis 2007, 45:807–825.
Durkin M, Witt J, Lemonte A, et al.: Antigen assay with the potential to aid in diagnosis of blastomycosis. J Clin Microbiol 2004, 42:4873–4875.
Wheat J, Wheat H, Connolly P, et al.: Cross-reactivity in Histoplasma capsulatum variety capsulatum antigen assays of urine samples from patients with endemic mycoses. Clin Infect Dis 1997, 24:1169–1171.
Bariola JR, Durkin M, Wheat LJ, et al.: Persistent antigenuria during therapy for blastomycosis [abstract 564]. Presented at the 44th Annual Meeting of the Infectious Diseases Society of America. Toronto, Canada; October 12–15, 2006.
Mongkolrattanothai K, Peev M, Wheat LJ, Marcinak J: Urine antigen detection of blastomycosis in pediatric patients. Pediatr Infect Dis J 2006, 25:1076–1078.
Tarr M, Marcinak J, Mongkolrattanothai K, et al.: Blastomyces antigen detection for monitoring progression of blastomycosis in a pregnant adolescent. Infect Dis Obstet Gynecol 2007, 2007:89059.
Shurley JF, Legendre AM, Scalarone GM: Blastomyces dermatitidis antigen detection in urine specimens from dogs with blastomycosis using a competitive binding inhibition ELISA. Mycopathologia 2005, 160:137–142.
Chapman SW, Dismukes WE, Proia LA, et al.: Clinical practice guidelines for the management of blastomycosis: 2008 update by the Infectious Diseases Society of America. Clin Infect Dis 2008, 46:1801–1812.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Vyas, K.S., Bariola, J.R. & Bradsher, R.W. Advances in the serodiagnosis of blastomycosis. Curr Fungal Infect Rep 2, 227–231 (2008). https://doi.org/10.1007/s12281-008-0033-z
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12281-008-0033-z