Valley fever on the rise Cases of dangerous fungal infection spread throughout California

The California Department of Public Health reports a concerning rise in Valley fever cases, particularly in the northern Central Valley and Central Coast regions. By July 31, 2025, the state recorded 6,761 provisional cases, with some counties already surpassing 2024 totals. Monterey County has experienced the most significant increase, with cases rising from 47 in 2023 to 344 so far this year. Valley fever, an illness caused by inhaling fungal spores from disturbed soil, often mimics symptoms of influenza and COVID-19, leading to frequent misdiagnosis. August marks Valley Fever Awareness Month, emphasizing the need for vigilance, especially among high-risk groups such as those over 60 and pregnant women.

The CDPH reports that while 60% of those exposed can fight off the infection without symptoms, severe cases may require hospitalization. In California, approximately 1,000 people are hospitalized annually for Valley fever, with a 10% mortality rate for those hospitalized. The CDPH recommends consulting a healthcare provider if symptoms persist beyond one week, particularly for those exposed to dusty environments.