In which areas of the US is Coccidioides (C immitis and C posadasii) endemic?

Updated: Aug 27, 2019
  • Author: Duane R Hospenthal, MD, PhD, FACP, FIDSA, FASTMH; Chief Editor: Michael Stuart Bronze, MD  more...
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In the United States, C immitis is endemic in California's San Joaquin Valley, while C posadasii is endemic in areas of the desert Southwest, including southern parts of Arizona as well as certain parts of Utah, Nevada, New Mexico, and Texas. Coccidioidomycosis occurs both among residents of these endemic areas as well as travelers who visit there. An occasional case transmitted via fomites is reported outside of endemic areas.

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