Coccidioides is geographically localized

on 8.10.08 with 0 comments




  • first identified in the San Joaquin Valley, particularly in Bakersfield

  • also, Phoenix and Tuscon, West Texas, and Mexico

  • the Sonoran desert is pretty much endemic for coccidioidomycosis

  • it’s found in the soil in PB


C. immitis and C. posadasii

  • the former is found primarily in California

  • the latter is found primarily elsewhere—US but not CA, Mexico, South America

  • the two are distinguished by their DNA structure

  • they separated 12 million years ago

  • however, they are clinically identical

Category: Microbiology Notes

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