Additional isolations of Blastomyces dermatitidis from natural sites.

The ecological niche of Blastomyces dermatitidis has not been established. This paper describes the repeat isolation of this pathogenic fungus from organic debris collected at a natural site and another, previously not reported, isolation. Although the precise environmental source of this pathogen still cannot be defined, each isolation of this fungus from a natural site adds to the understanding of the ecology of this organism.