The CDC has said it can take as long as six weeks to determine whether a sick person belongs to a given Cyclospora outbreak. Confirmed cases have since quadrupled, and the pool of unconfirmed illnesses has more than doubled. The bottom line: the CDC has confirmed 6,707 Cyclospora cases and knows of more than 11,500 more it has not yet confirmed. July 17, 2026: Taylor Farms de Mexico moves to remove all iceberg lettuce sourced from central Mexico from the U.S. market. July 14, 2026: CDC issues a health advisory on domestically acquired cyclosporiasis, with 1,645 confirmed cases and roughly 5,100 awaiting analysis.