The Growing Threat of Valley Fever: Climate Change and Increased Infections

The Centers for Disease Control and Prevention (CDC) estimates that over 500,000 Americans could be affected by Valley fever, a disease caused by the fungus Coccidioides. This figure is more than triple the previous estimates. Valley fever primarily occurs in the Southwest, but cases have been reported in unexpected areas. Symptoms include fever, cough, rash, and fatigue. While some cases can resolve on their own, complications can arise in up to 10% of cases. Diagnosis can be challenging, leading to delayed treatment. Climate change, with its warming temperatures and changing rain patterns, is projected to expand the areas where the fungus thrives, potentially increasing the number of Valley fever cases.