CDC declares end to largest cyclospora outbreak in U.S. history

Federal health officials have declared the end of the largest cyclospora outbreak in U.S. history, which sickened 12,883 people across 21 states and caused two deaths in Michigan. The outbreak was linked to shredded iceberg lettuce from Taylor Farms in Mexico, which was recalled in July 2026. While the CDC and FDA confirm the contaminated lettuce is off the market, the exact source of the fecal contamination remains unknown, sparking intense scrutiny over declining federal food safety inspections.

Outbreak declaration over

• ▪The Centers for Disease Control and Prevention and the Food and Drug Administration declared the end of the largest cyclospora food poisoning outbreak in U.S. history on September 11, 2026
• ▪The Food and Drug Administration stated on September 11, 2026, that all recalled iceberg lettuce related to the cyclospora outbreak is off the market and poses no further risk

Record case numbers

• ▪The United States government received reports of 19,595 laboratory-confirmed cases of cyclosporiasis since May 1, 2026, representing more than 16 times the cases reported during the same period in 2025
• ▪The worst previous year for cyclospora infections in the United States was 2019, when approximately 4,700 illnesses were reported nationally
• ▪The multistate cyclospora outbreak sickened 12,883 people across 21 states and resulted in more than 500 hospitalizations

Taylor Farms lettuce recall

• ▪The Taylor Farms recall involved thousands of packaged salad products shipped to major U.S. restaurant chains, including Yum Brands subsidiaries Taco Bell, Pizza Hut, and KFC, as well as grocery stores like Walmart
• ▪Taylor Farms voluntarily recalled iceberg lettuce grown in central Mexico on July 17, 2026, after federal investigators focused on the company as the source of the contaminated produce
• ▪The Centers for Disease Control and Prevention reported that most illnesses tied to the outbreak began before the Taylor Farms recall was announced, with infections peaking at over 1,000 in a single day

Michigan deaths reported

• ▪Michigan was the hardest-hit state in the outbreak, recording the most cases and the only two U.S. deaths tied to the cyclospora infection
• ▪Michigan health authorities stated that the two individuals who died from the cyclospora infection had significant underlying health conditions

Contamination source unknown

• ▪The Food and Drug Administration ended its on-site inspections and sample collection at Taylor Farms' processing facility and lettuce farms in Mexico, with sample analyses still pending as of September 11, 2026
• ▪Health officials noted that tracking cyclospora is exceptionally difficult due to its two-week incubation period and the highly perishable nature of fresh lettuce
• ▪The exact origin and mechanism of the sewage or human feces contamination that caused the cyclospora outbreak remain unknown to federal investigators

Food safety system concerns

• ▪Food-safety advocates expressed concerns that federal surveillance has declined after the Trump administration eliminated or relocated thousands of workers across the CDC, FDA, and USDA
• ▪The cyclospora outbreak highlighted a decline in international inspections by U.S. regulators to catch contaminated produce before it enters the United States
• ▪The Food and Drug Administration's acting deputy commissioner for food, Donald Prater, urged industry leaders to invest more in cyclospora prevention and strictly adhere to food safety regulations

Debatable claims

• ▪Private companies should bear the primary responsibility for food safety prevention
• ▪The FDA should increase international inspections of imported produce
• ▪Federal workforce cuts at food safety agencies compromised public health