Seattle and King County Public Health announced the conclusion of an investigation into a cryptosporidiosis outbreak tied to the Anderson School pool operated by McMenamins in Bothell, Washington. The probe followed reports that 14 individuals became ill during the summer of 2026.
Officials identified contamination of the pool water with the Cryptosporidium parasite as the source of the gastrointestinal illnesses. Cryptosporidiosis is a waterborne parasite known to cause gastrointestinal symptoms, prompting public health agencies to examine pool-related cases.