U.S. health officials investigate new outbreak of parasite cyclospora

By — Laura Ungar, Associated Press Laura Ungar, Associated Press Leave your feedback Share Copy URL https://www.pbs.org/newshour/health/u-s-health-officials-investigate-new-outbreak-of-parasite-cyclospora Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter U.S. health officials investigate new outbreak of parasite cyclospora Health Jul 23, 2026 3:42 PM EDT Federal health officials are investigating a new outbreak involving the diarrhea-causing parasite cyclospora. The outbreak included 72 people as of Wednesday. WATCH: Test results create more confusion around cyclosporiasis outbreak The Food and Drug Administration has not yet identified which products are linked to the illnesses. Officials also have not said where the cases are located. The Associated Press has asked the FDA for more information. Grow your mind Subscribe to our Science Newsletter to explore the wide worlds of science, health and technology. Federal officials earlier this week said they remained focused on lettuce from Taylor Farms as the source of a separate, multistate outbreak. The company last week announced it was recalling iceberg lettuce grown in central Mexico. READ MORE: What you need to know about the cyclosporiasis outbreak Cyclospora is a microscopic parasite that infects food that has come into contact with human feces, most commonly when produce is irrigated or washed with contaminated water. When ingested, the parasite causes intestinal illness marked by "frequent and sometimes explosive bowel movements," according to the Centers for Disease Control and Prevention. Federal and state health authorities have been investigating separate clusters of cyclospora illnesses, including the one traced to Taylor Farms. Food safety tips include washing hands with soap and water after using the bathroom and before handling food. Experts say cooking can kill the parasite and advise cooking produce to a temperature of at least 158 degrees Fahrenheit (70 Celsius.) A free press is a cornerstone of a healthy democracy. Support trusted journalism and civil dialogue. Donate now