The Michigan Department of Health and Human Services has officially reported the first two deaths in the United States associated with an ongoing outbreak of cyclosporiasis, a condition caused by a microscopic, spherical parasite. Health officials stated that both individuals who passed away suffered from underlying health conditions that were likely exacerbated by the severe dehydration and intestinal distress caused by the illness. The department has declined to release further details regarding the identity or specific circumstances of these deaths.
Cyclospora cayetanensis is known for infecting the bowels and is typically transmitted through feces-contaminated surfaces or substances. Historically, infections have been linked to the consumption of fruits and vegetables that were exposed to contaminated irrigation water. The Centers for Disease Control and Prevention (CDC) notes that the parasite is most prevalent in the late spring and summer months. While the illness is characterized by watery, frequent, and sometimes explosive bowel movements, the CDC emphasizes that it is rarely fatal.
Dr. Joel Kammeyer, division chief of infectious diseases at Wayne State University and the Detroit Medical Center, described the situation as a tragedy but underscored the rarity of such outcomes. He noted that despite thousands of reported cases, only two deaths have been recorded. Dr. Kammeyer explained that while cyclosporiasis is generally straightforward to treat in otherwise healthy patients, individuals struggling with other medical issues may lack the physical resilience required to withstand the severe dehydration that the parasite can induce.
Although cyclosporiasis remains less common than other major foodborne illnesses such as E. coli or salmonella, the number of reported cases has seen a significant increase over the past decade, with notable spikes occurring in 2018 and 2019. The latter year recorded approximately 4,700 cases. Currently, the CDC is monitoring a massive surge, with over 18,000 confirmed or suspected cases reported; however, due to reporting lags, state-level data suggests the actual figure may exceed 20,000 nationwide.
Federal health investigators have traced part of this widespread outbreak to lettuce from Mexico served at Taco Bell restaurants across nine states. As of late July, the CDC linked 1,947 cases to this specific source, resulting in at least 98 hospitalizations. Officials caution that the investigation remains ongoing and that other restaurants, brands, retailers, or distribution channels may also be connected to the current outbreak.
