A concerning outbreak of cyclosporiasis, caused by the Cyclospora cayetanensis parasite, has led to investigations in 31 states, including California. This intestinal infection is notorious for causing severe gastrointestinal distress, often described as “explosive diarrhea.” The recent spread of this parasite has prompted public health officials to take action.
Current State of Cyclosporiasis Cases
As of now, the Centers for Disease Control and Prevention (CDC) has documented 843 confirmed cases of cyclosporiasis in the U.S. since May 1, 2026. The CDC also recognizes more than 1,500 additional reported cases that are under review to determine if they are domestically acquired instances of the illness. Reports from state and local health officials indicate that actual numbers may be significantly higher than those confirmed by the CDC.
Michigan has emerged as one of the states hardest hit by this outbreak, with the Michigan Department of Health and Human Services reporting 1,562 total cases and 44 hospitalizations as of July 10. This reflects a worrying trend as cases have been reported across various states, exhibiting higher numbers in the past few weeks compared to the same period last year.
Fortunately, the CDC has noted that while 86 individuals have required hospitalization due to the illness, thankfully, no fatalities have been reported as a result of this outbreak.
What to Know About Cyclosporiasis
Cyclosporiasis is primarily linked to consumption of contaminated food or water. It is typically spread by items tainted with fecal matter, and importantly, it does not spread through direct person-to-person contact. Symptoms can range from watery diarrhea to a decrease in appetite and weight loss. Individuals who do not seek treatment may experience illness that lasts from a few days to over a month, with symptoms potentially receding and then reappearing multiple times.
As public health investigations continue, there has yet to be a specific source identified for the current outbreak. However, health officials encourage consumers to take precautions when handling fresh produce. Rinsing fruits and vegetables under running water and scrubbing their surfaces can help reduce the risk of contamination. While opting for frozen produce may be safer, it’s important to cook food to eliminate any potential risks associated with cyclosporiasis.
In light of this ongoing situation, staying informed through reliable sources like the CDC is crucial to navigating these health concerns.
