Minnesota health officials have linked dreadful salmonella that made more than 400 people sick in America to peanut butter, adding that some three deaths could also have the same reason behind.The CDC didn’t give details of these deaths. Mississippi is the 43rd state affected by the malady.

State officials found salmonella bacteria in King Nut peanut butter at a medical facility in Minnesota. The testing resulted in the discovery of a genetic match between the bacteria strain found in the butter and illnesses across the country.

“One thing common in all the patients was that they had had peanut butter,” said Doug Schultz, a Minnesota Department of Health spokesman. The brand couldn’t be determined in every case, but there aren’t many around.

Peanut butter was provided only through food services and was not sold to consumers. Officials show concern about the still ongoing use of the product, and Kassenborg requested the institutions to discard it for public interest.

The case of an old woman at a northern Minnesota hospital died of salmonella infection, although epidemiologist Stephanie Meyer of the state Health Department wasn’t sure whether the illness caused her death. Minnesota officials took the lead because foodborne investigation typically start at the state level. Minnesota officials were coordinating their investigation with the Centers for Disease Control and Prevention, the U.S. Food and Drug Administration and other states.