Two people have died in Michigan in connection with the ongoing cyclosporiasis outbreak, the first reported fatalities in the largest U.S. outbreak of the intestinal illness, according to Reuters. Cyclosporiasis, caused by the Cyclospora parasite, is typically not life-threatening but can cause severe diarrhea, nausea, and other gastrointestinal symptoms. Adults aged 30 to 39 account for the largest share of infections, with 2,216 reported cases. CDC said its national surveillance includes only laboratory-confirmed cases, while state health departments may also report probable cases, resulting in higher state totals. The U.S. Department of Health and Human Services said it is aware of the deaths in Michigan.