Federal health officials report that at least 31 infants across 15 states have been hospitalized with infant botulism linked to ByHeart Whole Nutrition Infant Formula since August through mid-November. ByHeart has voluntarily recalled all batches of its Whole Nutrition Infant Formula products nationwide after positive tests found Clostridium botulinum bacteria in some unopened cans. The US Food and Drug Administration is coordinating the investigation and advises consumers to stop using affected formula products immediately to protect infants from this rare but severe illness.