For the first time since the outbreak started, a case of salmonella contracted from Honey Smacks cereal has been reported in Minnesota.
The Centers for Disease Control announced on Tuesday that a further 30 people have been affected with salmonella linked to the Kellogg's cereal since July.
In total, 130 people have now contracted the bacteria after consuming Honey Smacks, and that includes one case in Minnesota.
Of those, 34 have been hospitalized, but no deaths have been reported.
The outbreak is spreading despite the CDC issuing an advisory to retailers almost two months ago that they should not sell any Honey Smacks cereal.
That came a month after Kellogg's recalled the cereal on June 14, after it became aware of a possible salmonella contamination.
"Even if some of the cereal has been eaten and no one got sick, throw the rest of it away or return it for a refund," the CDC said this week.
Honey Smacks are one of almost a dozen cereals, salads and snacks that have been subject to recalls in recent months, amid concerns over food poisoning.
Salmonella poisoning is particularly dangerous for children, who are most likely to eat Honey Smacks, and can even be fatal for particularly vulnerable individuals.