Infant Botulism Outbreak Expands to 23 Cases Across 13 States

Federal officials say the botulism toxin is linked to recalled ByHeart Whole Nutrition Infant Formula products.

A container of recently recalled baby formula, in Flagstaff, Ariz., on Nov. 12, 2025. AP Photo/Cheyanne Mumphrey

An outbreak of infant botulism, a type of severe illness caused by the botulism toxin and linked to a recalled brand of baby formula, has increased by eight cases to a total of 23 across several states, federal officials have confirmed.

Suspected or confirmed cases of infant botulism have spanned 13 states so far, said the Centers for Disease Control and Prevention (CDC) and Food and Drug Administration (FDA) in advisories updated on Nov. 14.