An Excessive Heat Warning is in effect on July 23, 2014 for La Paz, Maricopa, Pinal, and Yuma Counties until July 24, 2014 at 8:00 PM. Learn more about how to stay safe in extreme heat and stay informed about future heat alerts.

Coccidioidomycosis (Valley Fever)


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© The Arizona Republic

Valley Fever is a fungal infection of the southwestern United States caused by breathing in spores of the fungus Coccidiodes (kok-sid-e-OY-deeze). Two-thirds of all cases in the nation are reported from Arizona. Reported cases of Valley Fever in Arizona have increased greatly over the last decade.

The best way to protect yourself is learning the signs and symptoms of the disease, and if you have them, asking your doctor to test you for Valley Fever.