More cases of E. coli have been linked to customers who recently ate at Wendy’s fast food restaurants.
The U.S. Centers for Disease Control and Prevention reports that about 84 cases have occurred in four states, and at least 38 have led to hospitalizations.
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A specific food has not been confirmed with the outbreak, but it’s believed to be associated with the restaurant’s romaine lettuce supply.
The news comes after Wendy’s announced last week that it would pull lettuce from sandwiches in its restaurants in Michigan, Ohio and Pennsylvania.
The CDC said last Friday that it is trying to determine whether romaine lettuce is the source of the E. coli outbreak.
The CDC said there is no evidence that romaine sold in grocery stores is linked to the E. coli outbreak. The agency also said it is not advising people to stop eating at Wendy’s or not to eat romaine lettuce.
Wendy’s says lettuce used in its salads is different and not affected by its decision to pull the lettuce from sandwiches. The company said it is cooperating with the CDC.
“As a company, we are committed to upholding our high standards of food safety and quality,” Wendy’s said in a statement.
Wendy’s operates about 7,000 locations worldwide.