Climate Change Driving Valley Fever Spread
Cases of Valley fever have quadrupled in the last 20 years, and human-driven climate change may be responsible. The disease, caused by the flesh-eating fungus Coccidioides, affects tens to hundreds of thousands of people annually with many experiencing no symptoms and others misdiagnosed because symptoms overlap with common illnesses like the flu. In rare cases, it can be debilitating and even fatal. The disease costs the states where it is most prevalent—Arizona and California—about $1.5 billion per year.