At least 15 babies have been sickened during a recent outbreak of infant botulism.
Nine of the cases have been confirmed as infant botulism type A, with results for the other cases pending, Dr. Erica Pan, health officer for the California Department of Public Health, said on Nov. 10.
The 15 cases across 12 states are up from the 13 cases across 10 states reported over the weekend.
Federal and state officials are investigating the botulism outbreak, which has been tied to formula made by the company ByHeart.
Here’s what to know about the outbreak.
Illnesses Start
The cases of botulism started in August, authorities said….