Federal health officials are warning consumers not to eat certain recalled iceberg lettuce products after an outbreak of Cyclospora infections was linked to lettuce distributed by Taylor Farms de Mexico.

The Centers for Disease Control and Prevention said Taylor Farms de Mexico voluntarily removed all iceberg lettuce sourced from central Mexico from the U.S. market on July 17. The company also recalled several Marketside brand lettuce products sold at Walmart.

The recall includes:

Marketside Iceberg Salad (12-ounce and 24-ounce packages) with Best if Used By dates of July 18 through Aug. 3, 2026.Marketside Shredded Lettuce (8-ounce and 16-ounce packages) with Best if Used By dates of July 18 through Aug. 3, 2026.

The recalled lettuce was also distributed to restaurants and food service customers in multiple states, including Pennsylvania.

The CDC said illnesses linked to Taco Bell have been reported in Illinois, Indiana, Kansas, Kentucky, Michigan, Ohio, Oklahoma, Pennsylvania and West Virginia. Taco Bell has said it stopped using lettuce supplied by Taylor Farms de Mexico as of July 17.

Cyclospora is a parasite that can cause gastrointestinal illness. Symptoms typically include:

Frequent diarrheaLoss of appetiteWeight lossStomach crampsBloatingIncreased gasNauseaFatigue

Some people may also experience vomiting, body aches, headaches and fever. Symptoms can last for several days to a month or longer and may return after initially improving if left untreated. Health officials said people with weakened immune systems may experience more severe illness.

The CDC advises anyone who purchased or received the recalled lettuce to throw it away immediately and not eat it. Consumers should also clean and sanitize any surfaces or containers that came into contact with the recalled products to reduce the risk of cross-contamination.

Anyone who develops symptoms after eating shredded iceberg lettuce within the previous two weeks should contact a health care provider.

Taylor Fresh Foods distributed the recalled food service products between June 29 and July 16 to customers in Alabama, Arkansas, Connecticut, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Missouri, Mississippi, New Hampshire, New Jersey, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia and Wisconsin.

The CDC said the investigation remains ongoing and additional information will be released as it becomes available.