Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.AllNewsSportCultureLifestyleA sign of the Centers for Disease Control and Prevention (Reuters)California health officials have confirmed that Southern California is not currently experiencing an increase in cyclosporiasis cases or local outbreaks, despite surges in other parts of the nation like Pennsylvania and New Jersey. The state has reported 41 provisional cases from January to June 2026, which is a decrease from 80 cases during the same period in 2025 and falls within the annual average of 106 cases from 2015-2025. Dr. Erica Pan, CDPH Director, stated that California's 2026 case numbers are within expected ranges, with a majority of cases acquired internationally, and the state is closely monitoring for any signs of locally acquired infection. Cyclosporiasis - which can present as diarrhea - is an intestinal illness caused by a parasite, typically transmitted through food or water contaminated with human faeces, with person-to-person transmission being unlikely. The California Department of Public Health advises residents to practice safe food handling, thoroughly wash produce, and is tracking cases associated with travel to affected Eastern and Midwestern states. In fullDespite the nationwide outbreak of explosive diarrhea, this state is actually seeing fewer casesMore bulletinsThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in

A fast-spreading stomach parasite has sickened thousands of people across more than 30 US states.

The source of the current US outbreak is unknown, but in the past, cyclosporiasis has been linked to raspberries, basil, snow peas, green onions, and lettuce.

Cyclosporiasis has been reported in 31 states and has hospitalized 86 people as of July 9, according to statistics reported to the CDC.

Health officials are tracking new cases of cyclosporiasis, a foodborne infection that leads to severe gastrointestinal symptoms, including intense diarrhea.

The outbreak has resulted in at least 86 hospitalizations, though no deaths have been reported

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A map of the US outbreak of cyclosporiasis, which can cause diarrhea, shows Michigan has the most known cases. Lettuce and bagged salad could be the culprits.

The CDC and states are investigating a surge of cyclosporiasis cases across the country. Specific states' cases are likely linked.

There have been 1,645 confirmed cases of cyclosporiasis acquired in the United States since May 1, and more than 5,100 additional cases are being investigated, the US Centers for…

US health officials have not identified the source of contamination and are tracing foods linked to cases through the supply chain.

Nearly 7,000 cases of cyclosporiasis, an intestinal infection, have been reported across 34 US states. Learn about the outbreak and its suspected causes.

Cases of cyclosporiasis — the foodborne illness that can cause prolonged bouts of watery diarrhea — continue to surge nationwide, raising questions about the partial dismantling…

The US CDC is investigating thousands of possible cases across 34 states, as officials track down the source of the outbreak.

Official case counts likely capture only a fraction of US cyclosporiasis infections, and the outbreak is likely to get worse before it gets better.

Nearly 7,000 cases of cyclosporiasis are either confirmed or under investigation in the US - the source is still unknown.

This comes as cases of the parasite-borne disease surge in other parts of the nation, particularly in Pennsylvania and New Jersey

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One more state joins the list of diarrhea outbreaks. USA TODAY shows where cases are highest as of July 15.

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It took weeks for the CDC to issue a health advisory over the growing number of cyclosporiasis cases.