NewzNEW YORK (AP) — The largest cyclospora food poisoning outbreak in U.S. Food and Drug Administration officials said they are confident that all recalled iceberg lettuce related to this specific outbreak is off the market. Nearly 13,000 reported cyclospora cases were tied to the multistate outbreak, federal officials say.
They represent the bulk of an unprecedented surge in the parasitic diarrheal illness this year. Even with the outbreak deemed over, several questions remain, including about its origin. The parasite is spread through human feces, and it still isn’t clear how sewage could have contaminated enough food to sicken so many people.
“This contamination can happen if produce is grown in soil or comes into contact with water that has been contaminated,” said Ellen Shumaker, director of outreach for a North Carolina State University food safety program, Safe Plates. Since May 1, the government has received reports of nearly 20,000 lab-confirmed cases, or more than 16 times the number reported during the same period last year. More than 6,100 suspected cases also have been reported.
The worst previous year in the U.S. for infections was 2019, when about 4,700 illnesses were reported nationally. This year’s surge in cases was dominated by an outbreak in 21 states linked to iceberg lettuce.
But there are thousands of other cases that have not been linked to that outbreak. Michigan was the hardest hit state, with the most reported cases and the two U.S. Cyclospora is a microscopic, spherical parasite that commonly causes watery diarrhea “with frequent and sometimes explosive bowel movements,” according to the CDC.
Outbreaks tend to occur most often in the late spring and summer. The illness, called cyclosporiasis, is less common than foodborne illnesses caused by other germs, including salmonella and E. Many cases are never linked to a specific food or other source.
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