Two more infants have been hospitalized amid an outbreak of botulism, a type of severe illness caused by botulinum toxin, federal health officials say.

ByHeart, a maker of organic baby formula, expanded a voluntary recall on Tuesday to include all of its products sold nationwide after federal health regulators found botulism infections in two additio...

At least 15 babies in 12 states have been sickened in the outbreak tied to ByHeart formula, state and federal health officials said.