Several varieties of peanut butter crackers were pulled off store shelves in Oklahoma as a precaution while officials investigate a salmonella outbreak that affected two youths in the state.
The bacteria’s source has not been identified, the federal Centers for Disease Control and Prevention said, but it likely came from peanut butter.
The outbreak strain, which has sickened at least 450 people in 43 states, was isolated in an open 5-pound container of King Nut peanut butter from a Minnesota nursing home.
Health officials have not been able to determine whether the peanut butter was contaminated after it was opened or when it was produced at a Georgia processing plant operated by the Peanut Corp. of America.
The company announced a voluntary recall this week because of possible contamination. None of the products in Tuesday’s recall are available directly to consumers at retail stores.
Keebler and Austin brand peanut butter crackers were taken off store shelves Wednesday because some are made with peanut paste supplied by the Peanut Corp. of America, according to parent company Kellogg.
The cereal giant has not received any consumer illness complaints about its products, but officials opted to put a hold on any inventory as a precaution.
View map of states affected by outbreak