Cyclospora Outbreak Linked to Lettuce Raises Concern

Health officials in Michigan have identified a possible source of a cyclosporiasis outbreak that has sickened thousands across the United States. The illness is caused by the cyclospora parasite, often transmitted through contaminated food or water.

The Michigan Department of Health released a statement suggesting that lettuce or salad greens could be linked to the outbreak. However, they emphasized that the exact source remains uncertain, and other food items have not been ruled out. The statement did not specify any particular grower or supplier responsible.

As of Monday evening, Michigan has reported 2,640 cases and 44 hospitalizations, showing a significant increase of 69% compared to the previous Friday’s records. This marks the highest number of cyclosporiasis cases ever recorded in Michigan within a single year. Previously, the state typically reported only about 40 to 50 cases annually.

While Michigan faces the most significant outbreak, other states such as New York, Ohio, Illinois, Indiana, and Kentucky are also experiencing higher-than-normal numbers of cyclospora cases. According to the Centers for Disease Control and Prevention (CDC), at least 843 confirmed illnesses have been reported across 31 states, resulting in 86 hospitalizations.

Health experts highlight that the CDC figures likely undercount the actual number of cases, as states may take time to report and confirm cases. Independent confirmation by The New York Times places the current count at approximately 4,800 cases of cyclospora this year.

Caitlin Rivers, an epidemiologist at the Johns Hopkins Bloomberg School of Public Health, indicated that this year is on track to be the largest on record for cyclosporiasis in the United States. Since 2016, the CDC has reported an average of about 2,800 cases annually, showing a concerning rise in infections this year.