The cereal is the likely source of the salmonella outbreak, the CDC said.
More than a million packets of the product were recalled by the manufacturer Kellogg's in June after 100 people were infected in 33 states.
The FDA said on Thursday it would follow up with retailers to prevent the sale of the product. However, the FDA is asking that consumers avoid purchasing or consuming any Honey Smacks cereal for the time being - regardless of the dates on the box - out of an abundance of caution.
Two people in Kentucky have become ill with this strain of Salmonella. The Kellogg Company recalled the cereal on June 14, 2018.
The FDA is urging the public to report if the product is being offered for sale to the FDA Consumer Complaint Coordinator in their region. About 450 people die in the United States each year from salmonella.
"Retailers can not legally offer the cereal for sale and consumers should not purchase Kellogg's Honey Smacks cereal", the agency said in a statement. Florida has two people sick.
One hundred people are confirmed with infections from Salmonella Mbandaka, with 30 having been admitted to hospitals, according to the Centers for Disease and Prevention. In otherwise healthy adults, Salmonella infections usually last four to seven days.