Blastomycosis is a caused by the fungusBlastomyces dermatitidis. The fungus lives in moist soil and is associated with decomposing organic matter. Some individuals can have lung infections after inhaling airborne fungal spores although many do not become ill. The symptoms of blastomycosis are similar to those of influenza.
Blastomyces in generally found in the midwestern, south-central, and southeastern states.
There has not been a case of Blastomycosis reported in Arizona in the past 10 years.
Transmission
Transmission occurs through inhalation of the Blastomyces dermatitidis spores from the environment.
Incubation period may be weeks to months. In symptomatic patients the median incubation period is 45 days.
Lab Tests & Specimen Info
Test*
|
Specimen
|
Culture
(the specimens are in order of usefulness) |
Skin Scrapings,
Abscess Drainage, Urine, Sputum, Bronchial Aspirate |
Serology
(Plasma is not accepted) |
Serum,
CSF (Test can measure prior exposure to the fungus) |
Blastomycosis is not a communicable disease.
Standard precautions are recommended in healthcare settings.
Prevention for Patients
Anyone can become infected with the Blastomyces dermatitidis spores but individuals with underlying medical conditions may be at increased risk for infection. Individuals with weakened immune systems may consider avoiding wooded areas where they might come in contact with the fungus.
Anyone can become infected with the Blastomyces dermatitidis spores but individuals with underlying medical conditions may be at increased risk for infection. Individuals with weakened immune systems may consider avoiding wooded areas where they might come in contact with the fungus.
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