CDC reports over 22,000 cyclospora cases as experts advise low-risk produce options
More than 22,000 cyclospora infections have been confirmed in the United States since May, prompting recalls and guidance on produce that poses a lower risk of contamination.
The U.S. Centers for Disease Control and Prevention said that as of Aug. 7, more than 22,000 confirmed or suspected cases of cyclosporiasis have been reported in 47 states since May, marking a record-high summer surge. The Food and Drug Administration is investigating six separate outbreaks, the largest of which involves shredded iceberg lettuce supplied by Taylor Farms and distributed to at least 15 states. Taylor Farms has recalled the affected lettuce, and Taco Bell has removed it from its supply chain.
Michigan has recorded the highest number of cases, with over 12,400 infections and two deaths, though state officials say the outbreak appears to be slowing. Other investigations have identified cilantro or parsley as possible sources in North Carolina, but officials stress that multiple sources may be involved.
Food-safety experts said there is insufficient evidence to halt consumption of fresh produce overall. "I don’t think there’s enough evidence to suggest that we should stop eating fresh produce," said Donald Schaffner, a professor of food microbiology at Rutgers University. Wade Syers, a food-safety specialist with Michigan State University Extension, added that she continues to eat fresh fruits and vegetables.
The experts highlighted produce that historically carries a higher risk, such as leafy greens, fresh herbs and berries, because their surfaces are difficult to clean thoroughly. Conversely, they identified categories of lower-risk foods. Cooking produce to an internal temperature of at least 158°F eliminates the parasite, and fruits or vegetables with thick, removable skins—such as bananas, avocados and pineapples—reduce exposure when the peel is discarded. Smooth-surface items like cucumbers, carrots, watermelon and potatoes can be scrubbed effectively, though washing does not guarantee removal of the parasite.
Commercially blanched and frozen produce, as well as canned fruits and vegetables, have not been linked to cyclospora outbreaks, according to CDC data and a 2020 review in the journal Foods. The canning process applies high heat that destroys the parasite.
To minimize risk, the experts recommend standard food-handling practices: washing hands before and after handling produce, rinsing items under clean water, removing outer leaves or peels, and preventing cross-contamination by cleaning knives, cutting boards and surfaces. Anyone experiencing severe gastrointestinal symptoms should seek medical attention.