Record 9,280 Cases Of Valley Fever In California In 2023 - El Nino Rains Creating Prime Conditions For Fungal Disease
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The flooding caused by intensifying winter rainstorms in California is helping to spread a deadly fungal disease called coccidioidomycosis, or Valley fever. “Hydro-climate whiplash is increasingly wide swings between extremely wet and extremely dry conditions,” said Daniel Swain, a climate scientist at University of California, Los Angeles. Humans are finding it difficult to adapt to this new pattern. But fungi are thriving, Swain said. Valley fever, he added, “is going to become an increasingly big story.”
Cases of Valley fever in California broke records last year after nine back-to-back atmospheric rivers slammed the state and caused widespread, record-breaking flooding. Last month, the California Department of Public Health put out an advisory to health care providers that said it recorded 9,280 new cases of Valley fever with onset dates in 2023 — the highest number the department has ever documented. In a statement provided to Grist, the California Department of Public Health said that last year’s climate and disease pattern indicate that there could be “an increased risk of Valley fever in California in 2024.” “If you look at the numbers, it’s astonishing,” said Shangxin Yang, a clinical microbiologist at the University of California, Los Angeles. “About 15 years ago in our lab, we only saw maybe one or two cases a month. Now, it’s two or three cases a week.”
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The progression of the illness in humans depends on the strength of the individual’s immune system: The majority of people who contract Valley fever — some 60 percent — will never know they crossed paths with killer spores, because their immune system is able to rapidly vanquish the fungal intruder. But quashing Valley fever isn’t always a given, even for healthy individuals. The disease disproportionately impacts Latinos, Filipinos, Black people, Native Americans, and pregnant people for reasons researchers and physicians are still trying to puzzle out.
When it causes symptoms, Valley fever starts with a fever, headache, or cough — similar to the symptoms of COVID-19, a disease it is often confused with. If the immune system can’t fight off the Coccidioides spores, the illness can move past its initial phase and become a chronic condition that produces a severe cough, chest pain, weight loss, pneumonia, and nodules in the lungs. This stage, known as disseminated Valley fever, can also cause skin lesions and ulcers, swollen joints, meningitis — swelling of the membranes surrounding the spinal cord and brain — and even death. Between 1 and 5 percent of Valley fever cases reach the disseminated stage. Antifungal medications can help hold Valley fever at bay, but recovery ultimately depends on the individual’s immunological defenses. There is no cure for the disease, and approximately 200 people in the United States die from disseminated Valley fever every year.
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https://grist.org/health/intensifying-atmospheric-rivers-are-leading-to-a-surge-in-valley-fever-cases-in-california/