Story perspectives
Valley Fever Cases Surge 49%-80% Amid Climate Crisis
8/16/2025
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Story summary
- San Luis Obispo and Santa Barbara counties saw valley fever cases rise by 49% and 80% from 2023 to 2024.
- While most infections are mild, severe cases are increasing, even in healthy individuals.
- Factors such as climate change, dust storms, and droughts are associated with the surge.
- Provisional data indicates rising cases in other counties, including Alameda and Contra Costa.
