The U.S. Food and Drug Administration (FDA) announced the conclusion of the largest cyclosporiasis outbreak ever documented in the country. Cyclosporiasis is an intestinal infection caused by the microscopic parasite Cyclospora cayetanensis, typically transmitted through the consumption of contaminated food or water. This specific outbreak, which reached a total of nearly 13,000 confirmed cases, was traced back to contaminated lettuce.

Following the identification of the source, health officials worked to remove the affected produce from the supply chain. The FDA confirmed that the contaminated lettuce has been successfully pulled from the market, effectively halting the spread of the parasite associated with this event. While the outbreak is now considered over, the scale of the incident—reaching nearly 13,000 individuals—marks it as a significant public health event in recent years. The agency has not released further details regarding specific brands or retailers involved beyond the general identification of lettuce as the vector for the parasite. Health authorities continue to monitor for potential smaller clusters, but they maintain that the primary source of this record-breaking outbreak has been neutralized.