Source: SFGate
“Bay Area health officials are warning the public of an unusual surge in mushroom poisonings across the region and state, including the latest cases in Napa County. Over the weekend, three adults were hospitalized after eating wild mushrooms they collected in the rural area of Deer Park, the county’s Health and Human Services Agency said in a Tuesday news release. The three people were not Napa County residents and were foraging mushrooms specifically between Deer Park Road, Fawn Road and Silverado Trail. The agency said the poisonings are part of an ‘unprecedented outbreak’ of mushroom-related illnesses and deaths across California. According to the California Department of Public Health, there have been 47 cases, including four deaths, since Nov. 18, 2025. Of these cases, hospitalizations occurred in six Bay Area counties: Alameda, Contra Costa, San Francisco, San Mateo, Santa Clara and Sonoma.” (05/14/26)
https://www.sfgate.com/bayarea/article/napa-mushrooms-poison-california-22257807.php