CR encourages greater caution until more is known about the source of the outbreak, as the food chain is removing lettuce from some states.

The author is by Lisa L. Gill.

The Centers for Disease Control and Prevention confirmed that most of the people who became ill had eaten Wendy's sandwiches. Illnesses happened in four states. Wendy's removed romaine lettuce from its sandwiches in the region that has been linked to the E coli outbreak. Consumer Reports food safety experts advise against eating any Wendy's sandwich or salad with romaine lettuce until the company can confirm the source of the pathogen and how it plans to address it.

There have been no deaths. Illnesses began on July 26.

James E. Rogers is the director of food safety at Consumer Reports. The goal is to minimize your risk of getting it, and until we know more about its source, it's safest to avoid eating Wendy's sandwiches or Wendy's salads containing romaine lettuce.

CR asked Wendy's about the outbreak, what kind of testing the company was doing, and if other states would be affected. According to the CDC, romaine lettuce is the most common ingredient eaten by people who become ill.

According to the CDC, the number of sick people in the outbreak may be higher than reported.

According to the CDC, romaine lettuce and other leafy greens were involved in at least 46 multistate E. coli outbreaks over the course of a decade. CR food safety experts, including Rogers, have supported efforts by the FDA to be able to take steps to prevent future outbreak.

Symptoms of E. coli

It can take three to five days after eating contaminated food for the symptoms of E coli to show up.

According to the CDC, hemolytic uremic syndrome can cause death in up to 10% of people who become ill with E coli. Losing pink color in cheeks and in the lower eyelid is one of the symptoms.

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