A baby formula recall linked to an infant botulism outbreak is expanding. Here's what to know

ByHeart, which makes organic infant formula, recalled all of its products sold throughout the U.S. on Tuesday amid a growing outbreak of infant botulism.

At least 15 babies in 12 states have been sickened in the outbreak tied to ByHeart formula, state and federal health officials said. That's an increase from 13 cases in 10 states reported Saturday.