Gaylord Pacific Resort pools reopen after Cryptosporidium investigation

San Diego County health officials have investigated an outbreak of cryptosporidiosis at the Gaylord Pacific Resort in Chula Vista. The illness is caused by Cryptosporidium, a microscopic, chlorine-resistant parasite that can cause severe watery diarrhea.

Investigators identified four potential cases linked to the resort’s waterpark and swimming pools. The exposure window was identified as occurring between July 24 and August 15. Three cases were confirmed via laboratory testing, while a fourth was reported by a family member.

In response to the investigation, the resort voluntarily closed all pools on August 25 to undergo CDC-recommended hyperchlorination treatment. This process included boosting chlorine levels and cleaning pool filters. Following inspections by county officials on August 26, 27, and 28, all pools, spas, and waterpark features were cleared to reopen on August 28.