The Food and Drug Administration says retails still can not legally sell Kellogg's Honey Smacks cereal following a recall.
The CDC has urged consumers not to eat Honey Smacks "in any size packaging" and to throw opened or unopened boxes in the trash even if some of the cereal had been eaten without people falling ill.
The CDC says at least 30 of the people infected in the outbreak have been hospitalized.
"The FDA has become aware that recalled Kellogg's Honey Smacks cereal are still being offered for sale", the agency said in a statement. No deaths have been reported, the CDC said.
The recalled products had use by dates of June 14, 2018 through June 14, 2019 and involved the cereals' 15.3 ounce and 23 oz. packages.
According to Reuters, the company recalled an estimated 1.3 million cases of the cereal but the US Food and Drug Administration (FDA) said Thursday that it believes the cereal is still being sold by some stores. "Retailers can not legally offer the cereal for sale and consumers should not purchase Kellogg's Honey Smacks cereal".
Health officials said people get sick from Salmonella 12 to 72 hours after ingesting the germ, and experience diarrhea, fever and stomach cramps.
Florida and Colorado are the latest states to report illnesses as part of the outbreak, bringing the total number of states affected to 33.