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Brynn Carrigan's debilitating headaches led to a diagnosis of coccidioidal meningitis, a rare Valley fever complication. Valley fever cases are surging in California, exceeding 12,600 in 2024, a record high. The rise is attributed to climate change creating drier conditions and expanding the fungi's range. New hotspots are emerging beyond traditional areas, including along California's central coast. Drought followed by wet winters exacerbates the problem, and wildfires may also play a role. Early diagnosis is crucial, as symptoms mimic other illnesses. While most cases are mild, complications like meningitis can be severe.

Prepared by Olivia Bennett and reviewed by editorial team.