Coccidioidomycosis
![](/Images/godic/202501/02/Coccidioidomycosis_015508.jpg")
![A skin lesion due to Coccidioides infection](/Images/godic/202501/02/Coccidiodes_lesion_15508.jpg")
![Life cycle of coccidioides](/Images/godic/202501/02/Life_cycle_of_coccidioides.svg5508.png")
![Both Coccidioides species share the same asexual life cycle, switching between saprobic (on left) and parasitic (on right) life stages.](/Images/godic/202501/02/Life_cycle_of_Coccidioides5508.PNG")
Coccidioidomycosis (/kɒkˌsɪdiɔɪdoʊmaɪˈkoʊsɪs/, kok-sid-ee-oy-doh-my-KOH-sis), commonly known as cocci, "valley fever", as well as "California fever", "desert rheumatism", and "San Joaquin Valley fever", is a mammalian fungal disease caused by Coccidioides immitis or Coccidioides posadasii. It is endemic in certain parts of Arizona, California, Nevada, New Mexico, Texas, Utah, and northern Mexico.