Valley Fever Cases in California Rise by 20% Compared to 2023: Everything You Need to Know About the Infection
Valley fever cases are rising in California, surpassing the numbers reported in 2023, with further increases expected as December data comes in.
According to the California Department of Public Health, 11,076 Valley fever cases had been reported by the end of November 2024, showing a nearly 20% increase from last year’s total of 7,396 cases. In 2022, 6,742 cases were recorded.
Kern County has the highest number of cases, accounting for nearly one-third of all reported cases with 3,768 instances this year. While counties like Los Angeles and Riverside have seen moderate increases compared to 2022, several others, including Fresno, Kings, Merced, San Francisco, San Joaquin, San Luis Obispo, Santa Barbara, and Stanislaus, have experienced a 100% to 200% rise. In Monterey County, the number of cases has tripled, rising from 100 in 2022 to 299 this year.
About Valley fever
Valley fever, also known as coccidioidomycosis, is a lung infection caused by the Coccidioides fungus, which thrives in soil. This fungus is native to the southwestern United States, the Pacific Northwest, and parts of Mexico, Central America, and South America. People can become infected by inhaling fungal spores, though not everyone who breathes them in will develop the disease.
Symptoms of Valley fever include cough, fever, and fatigue, with some individuals being more susceptible to severe illness. While rare, the infection can sometimes spread beyond the lungs to other areas of the body. Early treatment with antifungal medications is crucial for preventing serious complications.
Valley fever can be difficult to diagnose, as its symptoms often resemble those of pneumonia caused by bacteria or viruses. Pets can also contract the fungus, but the disease is not transmitted between humans or from humans to animals.
Symptoms:
•Cough
•Fever and headache
•Shortness of breath
•Fatigue
•Night sweats
•Muscle aches or joint pain
•Rash on the upper body or legs
In severe cases, about 5 to 10% of people may develop long-term lung problems. Around 1% may experience the infection spreading to other parts of the body, such as the skin, bones, joints, or brain (meningitis).
Treatment:
Early detection and treatment with antifungal medications are crucial for effective treatment. Severe cases may require hospitalization.
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