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CDC counts more than 15,700 U.S. Cyclospora cases since May as lettuce cluster continues
Confirmed
Last year, 1,180 cases were reported in the U.S. between May 1 and August 31. “The last time I talked to them they were down to two,” he said. The agency said it was aware of more than 12,000 additional cases that either had not been laboratory-confirmed or required further analysis, including to rule out whether the patients had traveled overseas before becoming ill. The CDC said it is aware of at least 11,841 additional cases that have not been laboratory-confirmed or require further investigation to determine if they were acquired domestically. There have been two deaths and 828 hospitalizations, 88 of which were reported since last week.
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Published Aug 20, 2026 at 07:37 AM EDT National Correspondent More than 15,000 laboratory-confirmed cases of cyclosporiasis have been reported across the United States this year, according to the latest figures from the U.S. Centers for Disease Control and Prevention ( CDC ). Federal and state health authorities are investigating several clusters of cyclosporiasis—the gastrointestinal illness caused by the diarrhea-causing parasite cyclospora—to determine how many could be linked to a common contaminated source. The largest outbreak, affecting 17 states so far, has been traced to lettuce supplied by Taylor Farms . This year is already the nation’s worst year for reported cases of cyclosporia
Independent. Member-supported. For the Pacific Northwest. Independent. Member-supported. Rose Wong for NPR Environmental health expert Bob Custard spent four decades working with local governments on things like clean water, rabies prevention and food safety. He also represents 160 others doing that kind of work as president of the West Virginia Association of Sanitarians . With the largest-ever cyclosporiasis outbreak concentrated in nearby states, Custard – now a public health consultant – said federal funding cuts have left local food safety programs across the state grossly understaffed. Health officials are unable to keep pace with the interviews and investigations needed to track and c
What's confirmed
- There have been two deaths and 828 hospitalizations, 88 of which were reported since last week.
- The CDC said it is aware of at least 11,841 additional cases that have not been laboratory-confirmed or require further investigation to determine if they were acquired domestically.
- "If you're really thinking about keeping your family safe, it's not unreasonable to continue to wash your lettuce at this time while we watch the numbers go down," said Dr. Sharon Nachman, chief of the Division of…
- Last year, 1,180 cases were reported in the U.S. between May 1 and August 31.
- At least 828 patients have been hospitalized, and two deaths have been reported .
- The U.S. Food and Drug Administration ( FDA ) said last week that 17 states were affected by the largest cyclospora outbreak , which officials have linked to iceberg lettuce.
- FDA "will continue to work with federal and state partners to investigate this multistate outbreak," the agency said .
- The agency said it was aware of more than 12,000 additional cases that either had not been laboratory-confirmed or required further analysis, including to rule out whether the patients had traveled overseas before…
What's still developing
- Further court action and how much of the order can take effect remain open.