AUTHORITIES IN SONOMA COUNTY are investigating the cause of illnesses associated with last weekend’s Tough Mudder event, which took place at Sonoma Raceway and involved a muddy obstacle course. 

Sonoma County officials said they are operating under the assumption that the illnesses are being caused by a waterborne bacterial pathogen known as Aeromonas until the investigation can be fully completed. 

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Katy St. Clair got her start in journalism by working in the classifieds department at the East Bay Express during the height of alt weeklies, then sweet talked her way into becoming staff writer, submissions editor, and music editor. She has been a columnist in the East Bay Express, SF Weekly, and the San Francisco Examiner. Starting in 2015, she begrudgingly scaled the inverted pyramid at dailies such as the Vallejo Times-Herald, The Vacaville Reporter, and the Daily Republic. She has her own independent news site and blog that covers the delightfully dysfunctional town of Vallejo, California, where she also collaborates with the investigative team at Open Vallejo. A passionate advocate for people with developmental disabilities, she serves on both the Board of the Arc of Solano and the Arc of California. She lives in Vallejo.