U.S. cyclospora cases have surpassed the prior record of approximately 4,700 set in 2019, with nearly 7,000 confirmed or under investigation in more than 30 states. Michigan accounts for over 3,300 cases, where officials cite patient interviews pointing to lettuce or salad greens, though federal agencies have not identified a definitive source. Infections are expected to continue through August and are typically treated with antibiotics.