Northern Wisconsin and Minnesota have some of the highest reported incidences, sometimes exceeding 100 cases per 100,000 people during outbreaks.
Adult males are more frequently affected, likely due to higher occupational and recreational exposure to outdoor environments. Clinical Manifestations Blastomycosis - StatPearls - NCBI Bookshelf blastomycosis
The fungus thrives in moist, acidic soil and decaying organic matter (wood and leaves), particularly near waterways. Northern Wisconsin and Minnesota have some of the