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

Valley fever, caused by the fungus Coccidioides, could be affecting more than 500,000 Americans each year, according to preliminary estimates from the CDC. The disease primarily occurs in the Southwest, but cases have been reported in unexpected areas. Symptoms are similar to influenza or COVID-19, and while some people recover on their own, complications can arise in up to 10% of cases. Diagnosis can be delayed, leading to unnecessary treatments. Climate change, including drought and wildfires, is linked to the spread of the fungus, and warming temperatures may expand the areas where it thrives. Efforts are underway to develop a vaccine and new treatments for Valley fever.