As reports of Cyclospora infections rise across the United States, public health officials and food safety experts are emphasizing that consumers should not avoid fresh fruits and vegetables. Despite the prevalence of the parasite, which causes an intestinal illness known as cyclosporiasis, authorities maintain that the vast majority of produce remains safe to consume.
Understanding the Current Outbreak
Cyclospora cayetanensis is a microscopic protozoan parasite that lodges in the small intestine. According to data from the Centers for Disease Control and Prevention (CDC), there have been more than 4,000 lab-verified cases across 41 states since May 1, with state health departments reporting over 7,000 additional suspected cases awaiting federal confirmation (ces.ncsu.edu). Other reports, such as those cited by The BMJ, noted at least 1,645 laboratory-confirmed cases and 145 hospitalizations as of July 14 (bmj.com).
The illness is characterized by watery, explosive diarrhea, stomach cramps, and nausea. Symptoms can be severe and last for a month or longer, with some individuals experiencing as many as 40 bouts of diarrhea per day. While the parasite is debilitating, there have been no reports of deaths as of July 15.
Regional Variations in Risk
The severity of the outbreak varies significantly by geography. While some regions are experiencing a cluster of cases, other areas are seeing infection rates consistent with typical seasonal trends. For instance, in New York, officials reported approximately 576 cases since May, a figure that does not represent a major deviation from the state’s typical annual range of 500 to 700 cases. Similarly, California officials noted that case counts for the current year are lower than those recorded during the same period in 2025 (consumerreports.org).
In Illinois, while case counts are higher than average, health officials have stated there is no evidence of a single large outbreak accounting for the majority of these infections. Conversely, a specific multistate outbreak involving iceberg lettuce has been identified in Michigan, Ohio, West Virginia, Kentucky, and Indiana.
For more on this story, see FDA Retracts Link Between Taylor Farms Lettuce and Cyclospora Outbreak.
Practical Steps for Safe Produce Handling
Because Cyclospora is often linked to fresh produce—such as cilantro, basil, raspberries, and lettuce—experts recommend focusing on proper handling rather than avoidance. According to Ellen Shumaker, an NC State Extension food safety expert, washing produce helps reduce the risk but does not eliminate the parasite entirely.
To reduce the risk of infection, consumers should follow these guidelines:
- Rinse and gently rub fruits, vegetables, and herbs under cool running water before preparation.
- Scrub firm produce, such as melons and cucumbers, with a clean vegetable brush.
- Remove bruised areas and the outer leaves of leafy vegetables.
- Use separate, clean cutting boards and utensils for raw produce and ready-to-eat foods.
- Wash hands thoroughly before and after handling produce.
- Avoid using soap or commercial produce washes.
For those with weakened immune systems, experts note that avoiding raw produce during the outbreak may be a personal preference, but it is not a general requirement for the public.
The Role of Heat and Supply Chain Investigations
Cooking is the only reliable method for killing Cyclospora. The parasite is inactivated when food is heated to 158°F (70°C) or higher (msn.com).
Federal and state investigators continue to work to identify the specific sources of contamination. In instances where specific products have been linked to an outbreak, such as the recent lettuce investigation, products have been voluntarily recalled and removed from the market. Consumers are encouraged to check their homes for recalled items and either discard them or return them to the place of purchase. Officials continue to advise the public to stay informed through official health updates as investigations remain ongoing.
Discover more from Archyworldys
Subscribe to get the latest posts sent to your email.