Diarrhea-Causing Parasite Spreads in Multiple States

Published: Tuesday, July 7, 2026 at 5:53 pm

Parasitic Illness Surges Across Multiple States, Investigations Underway

A significant increase in cases of cyclosporiasis, a parasitic infection, is prompting concern and intensive investigations across several states. As of July 4, Michigan has reported a sharp rise to 572 cases, a substantial jump from 170 just four days prior. Beyond Michigan, the U.S. Centers for Disease Control and Prevention confirms that over 100 individuals in other states, including Texas and New York, have also fallen ill with the infection.

Cyclosporiasis is caused by the Cyclospora parasite, which can contaminate food and water. A primary and often debilitating symptom is watery, explosive diarrhea, which can lead to dehydration. Health authorities, including the CDC and the Food and Drug Administration, are actively examining multiple clusters of these cases. However, as of their latest update on July 1, no definitive sources of contamination have been identified.

Historically, outbreaks of cyclosporiasis have been linked to fresh produce. Experts suggest that common culprits could include leafy greens, salad mixes, berries, basil, and cilantro. While the exact cause of the current outbreak remains undetermined, health officials are emphasizing preventative measures. The Michigan Department of Health and Human Services, acknowledging the historical patterns, is advising both individuals and businesses involved in raw produce handling to wash all produce thoroughly. They also recommend cooking produce when feasible before consumption.

In New York, preliminary data indicates a significant number of confirmed cases, with the state Department of Health reporting 118 confirmed cases since May 1. The CDC also notes at least 31 recent cases in the state. While cyclosporiasis is not typically spread directly from person to person and is generally not life-threatening for individuals with healthy immune systems, state health departments are urging residents to remain vigilant and practice good hygiene.

Texas is also experiencing cases, with at least 11 reported. Health officials there note that the typical season for cyclospora runs from May through August, making the current incidence not entirely unusual.

To mitigate the risk of infection, experts recommend thorough washing of all produce. Additional preventative steps include diligent handwashing with soap and water before and after handling fruits and vegetables, and discarding any damaged or bruised portions. Individuals who suspect they may have contracted cyclosporiasis should consult a doctor, who can order laboratory tests for confirmation. Symptoms, which typically appear within two to 14 days of infection, can also include abdominal cramping, nausea, and fever. Antibiotics are the standard treatment for the infection.

BNN's Perspective: The current surge in cyclosporiasis cases across multiple states highlights the ongoing challenges in ensuring food safety, particularly concerning fresh produce. While investigations are underway to pinpoint the source, the consistent advice from health authorities on thorough washing and proper handling of produce serves as a crucial reminder for consumers and the food industry alike. The situation underscores the importance of vigilance and adherence to public health recommendations, especially during warmer months when such infections can be more prevalent.

Tags: cyclosporiasis, parasitic infection, diarrhea, dehydration, food safety, produce, CDC, FDA, Michigan, Texas, New York, Cyclospora, outbreak, contamination, health authorities, prevention, antibiotics

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