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CDC Reports 2,944 Cyclosporiasis Cases Across 32 States as of July 10
At least 2,944 cases of the parasitic infection have been reported in 32 states through July 10, 2026. Michigan accounts for more than half, with officials linking the outbreak to suspected food contamination.
Jul 12, 7:00 AM·1m read1 source
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At least 2,944 cases of cyclosporiasis have been reported in 32 states as of July 10, 2026, according to data from the Centers for Disease Control and Prevention and state health departments compiled by ABC News. Michigan recorded 1,562 cases and 44 hospitalizations, a total 31 times higher than the state's typical annual figure of about 50 cases.
New York reported 470 cases since May 1, Ohio reported 364 cases, and Illinois and Florida each reported more than 100 cases.
Michigan health officials stated that the working hypothesis is a link to food contamination, though no produce, grower or supplier has been identified. The CDC said the actual number of infections is likely higher because some people recover without medical care or testing.
The parasite spreads through food or water contaminated with feces and has previously been tied to imported fresh produce such as raspberries, basil, snow peas, mesclun lettuce and cilantro.
Common symptoms include watery diarrhea, nausea, vomiting, abdominal pain or bloating, with onset typically about one week after infection. Treatment consists of the oral antibiotic trimethoprim-sulfamethoxazole taken for 10 days. The CDC recommends thorough washing of produce and hands to reduce risk.
