[Etiology of the first African case of systemic blastomycosis].

Several authors have suggested that african and north american forms of Blastomyces dermatitidis appeared separate taxa. Morphologic and pathogenic differences not only prevail, but also the failing to mate between them. African forms lose their mycelium-yeast conversion capability in old cultures. So I propose to create the complementary appellation Blastomyces dermatitidis tunisiens nov.subsp. from the african forms, in memory of the first case of systemic blastomycosis in this continent, discovered in Tunisia.