Coccidioidomycosis is an infection caused by the fungus Coccidioides immitis, which resides in the soil in some areas of Arizona, California, Nevada, New Mexico, Texas, and Utah.
Infection can occur when airborne, infective arthroconidia are inhaled.
This report summarizes the occurrence of coccidioidomycosis in California during 1991-1993. Coccidioidomycosis surveillance data are reported to CDHS by the counties as weekly case counts only. DM Dixon, PhD, National Institute of Allergy and Infectious Disease, National Institutes of Health. The public health impact of coccidioidomycosis in California during 1991-1993 was substantial. During 1991-1993 and previously, the number of coccidioidomycosis cases probably has been underreported.