‘Tough Mudder’ course sickened hundreds with untreated water full of dangerous bacteria: Lawsuit

Hundreds of people were sickened at a "Tough Mudder" event in California in 2023 (KTVU).

Hundreds of people were sickened at a “Tough Mudder” event in California in 2023 (KTVU).

Hundreds of people were sickened with rashes, fevers, headaches, and swollen lymph nodes after crawling through mud pits contaminated with bacteria from untreated water at a so-called “Tough Mudder” obstacle course in California last year, a new lawsuit alleges.

The lawsuit was filed by Evan Goldsmith, who was among hundreds of racers who took part in the event on Aug. 19 and 20, 2023, at the Sonoma Raceway and who reported rashes with fever, muscle pain, or nausea/vomiting from a bacterial infection called Aeromonas, typically found in freshwater, estuaries, marine environments and sludge. Participants flooded emergency rooms, a public health advisory was issued and an investigation was launched into the cause of the breakout in Sonoma County, about 45 miles north of San Francisco.

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