A cyclosporiasis outbreak across the U.S. has sickened hundreds of confirmed cases, with additional cases still being investigated. As of mid-July 2026, the CDC confirmed 843 cases across 31 states, with roughly 1,500 more cases under analysis. The outbreak has been linked to salad greens and lettuce contamination, though investigations are still underway to identify specific sources and producers. No deaths have been reported. If you've eaten salad greens recently and developed severe diarrhea, it's worth considering whether contamination from this outbreak could be the cause. The CDC is working with state health departments to trace the source and get a clearer picture of the outbreak's scope.