Record U.S. cyclosporiasis outbreak is over, CDC says

The largest outbreak, linked to shredded iceberg lettuce from Taylor Farms, sickened more than 12,000 people.

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Jacob Pramuk
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Record U.S. cyclosporiasis outbreak is over, CDC says
  • The largest ever outbreak of cyclosporiasis in the U.S. has ended, the Centers for Disease Control and Prevention said Friday.
  • The foodborne illness sickened 12,833 people in 21 states in recent months in the largest cluster, the CDC said.
  • Health officials have linked that outbreak to shredded iceberg lettuce supplied by Taylor Farms in Mexico.
People shop at a Manhattan grocery store on August 13, 2026, in New York City. Spencer Platt | Getty Images

The largest-ever outbreak of cyclosporiasis in the U.S. has ended, the Centers for Disease Control and Prevention said Friday.

The foodborne illness sickened 12,833 people in 21 states in recent months in the largest cluster, the CDC said. Health officials have linked that outbreak to shredded iceberg lettuce supplied by Taylor Farms in Mexico.

It fueled the worst cyclosporiasis season in U.S. history, with 19,595 overall cases of the illness caused by the parasite cyclospora. The U.S. recorded two deaths, both in Michigan, the epicenter of the biggest outbreak.

The foodborne illness spread sparked scrutiny of U.S. food safety procedures and corporate consolidation in the country's food supply, along with staffing and funding at the U.S. Food and Drug Administration.

The outbreak also led to lower sales at restaurants that offer fresh lettuce — particularly Taco Bell, which served shredded iceberg lettuce from Taylor Farms — and dampened lettuce sales at grocery stores.

Cyclospora was challenging for health officials to track because of its long incubation period. It can take weeks to trace back the source of the illness, after which implicated produce may have spoiled.

Taylor Farms recalled the iceberg lettuce, including packages sold in grocers such as Walmart, in July. Taco Bell also pulled the lettuce from its restaurants that month.

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How Taylor Farms became so important to the U.S. food supply

Where this came from

This story was reported by Jacob Pramuk and first published by CNBC on 11 Sep 2026. HUE Legacy Ventures did not write it.

Carried in full with attribution and a link to the original. Rights remain with the publisher, who may request removal at any time.

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