Consumers who have any type of romaine lettuce in their home are urged to throw it out immediately, even if some was eaten and no one has gotten sick.
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The CDC said they are investigating and information will be updated as more information becomes available. One of the hospitalized people developed hemolytic uremic syndrome, a potentially life-threatening form of kidney failure.
32 people from 11 states have been infected, but Kentucky has yet to report a case.
The outbreak involves a strain of the bacteria called Shiga toxin-producing E. coli O157:H7, which may cause serious illness.
The advisory is not linked to another multistate outbreak of the same bacteria in romaine lettuce, which sickened at least 53 people across 16 states this past spring.
All of those cases have been linked to romaine lettuce, and the CDC said consumers should not eat any romaine lettuce of any kind, as "no common grower, supplier, distributor, or brand of romaine lettuce has been identified". The advice includes all types of romaine lettuce including salad mixes that contain romaine.
Health experts with the Centers for Disease Control and Prevention are now advising that consumers should not eat any romaine lettuce, and said retailers and restaurants should not serve it, after 32 people became ill from E. coli between October 8 and October 31.
Wash and sanitize drawers or shelves in refrigerators where romaine was stored. No deaths have been reported, according to the CDC. Follow these five steps to clean your refrigerator. "This takes an average of two to three weeks", the CDC said. Antibiotics are also not recommended for patients in whom E.coli O157 infection is suspected, until diagnostic testing rules out this infection.
Write down what you ate in the week before you started to get sick.