Cyclospora Outbreak Linked to Iceberg Lettuce Hits Iowa as Cases Surge Across 15 States

A dangerous outbreak of cyclosporiasis, a parasitic infection causing severe diarrhea, has now spread to 15 states including Iowa, according to reports. The outbreak, traced to iceberg lettuce grown in central Mexico by Taylor Farms, has already resulted in two deaths and thousands of confirmed cases nationwide.

Iowa is among the latest states added to the list, joining Missouri, Arkansas, Nebraska, New Hampshire, and North Carolina. The Centers for Disease Control and Prevention (CDC) has not yet updated its public page to reflect the expansion, but sources familiar with the matter confirmed the new states to Reuters, the Washington Post, and the New York Times.

What is Cyclosporiasis and How Does It Spread?

Cyclosporiasis is caused by the parasite Cyclospora cayetanensis. It typically spreads through contaminated food or water. Symptoms include diarrhea, nausea, vomiting, and other gastrointestinal distress. While rarely fatal, the infection can be dangerous for people with weakened immune systems or underlying health conditions.

Many cases go unreported because symptoms can take weeks to appear, and people often recover at home without seeking medical care.

Iowa and the Midwest Hit Hard

Michigan and Ohio have been the epicenters of the outbreak. Michigan reported 11,508 cases as of August 4, including the first two deaths linked to the outbreak. Ohio recorded 4,087 confirmed cases between May 1 and July 28. The Taylor Farms outbreak was initially identified in nine states: Illinois, Indiana, Kansas, Kentucky, Michigan, Ohio, Oklahoma, Pennsylvania, and West Virginia.

Now, with Iowa and other states added, the reach of the contaminated lettuce is expanding. For Iowa families, this means checking labels on iceberg lettuce products and avoiding recalled items from Taylor Farms.

Government Response Under Scrutiny

Health and Human Services Secretary Robert F. Kennedy Jr. said during a July 21 news briefing that the outbreak was “under control.” But critics point to cuts in federal-state partnerships that monitor foodborne illnesses. Last year, the CDC scaled back a decades-long program that tracked pathogens like cyclospora.

Critics argue that reduced surveillance and staffing shortages allowed the outbreak to spread undetected. They also link the cuts to other recent health crises, such as the screwworm outbreak.

“The government’s failure to maintain basic food safety monitoring is putting families at risk,” said a spokesperson for the Iowa Farm Bureau, which has long advocated for strong agricultural oversight.

What Iowans Should Do Now

Consumers should check their refrigerators for recalled iceberg lettuce from Taylor Farms. The FDA has not yet identified the source of other cyclosporiasis clusters, but the agency is investigating at least 93 additional cases in separate outbreaks.

If you experience symptoms like watery diarrhea, nausea, or vomiting after eating lettuce, contact your healthcare provider. Cyclosporiasis is treatable with antibiotics, but early diagnosis is key.

For updates, visit the CDC’s cyclosporiasis page or follow the Iowa Department of Public Health.

FAQ: Cyclospora Outbreak in Iowa

Is the cyclospora outbreak still active in Iowa?

Yes. Iowa was added to the list of affected states as of August 5. The outbreak is ongoing, and cases continue to be reported.

How can I protect my family from cyclosporiasis?

Avoid recalled iceberg lettuce from Taylor Farms. Wash all produce thoroughly, and cook food to safe temperatures. If you have symptoms, see a doctor.

What is the government doing about this outbreak?

The FDA and CDC are investigating, but critics say cuts to food safety programs have hampered the response. HHS Secretary Kennedy has stated the outbreak is under control.

This article is based on reporting from USA TODAY and other sources.