Published in Medical Letter on the CDC and FDA, December 14th, 2003
According to a study from the United States, C. neoformans "is a human fungal pathogen that exists as three distinct varieties or sibling species: the predominantly opportunistic pathogens C. neoformans var. neoformans (serotype D) and C. neoformans var. grubii (serotype A) and the primary pathogen C. neoformans var. gattii (serotypes B and C)."
"While serotypes A and D are cosmopolitan, serotypes B and C are typically restricted to tropical regions," noted J.A. Fraser and coauthors at Duke University....
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