The Brief

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

Botulism is a rare but serious disease that can cause paralysis and death.

ByHeart baby formula recall linked to botulism

By the numbers:

California health officials said the outbreak, which is tied to ByHeart formula and started in August, has now sickened at least 15 infants in 12 states.

That's an increase from 13 cases in 10 states reported Saturday. No deaths have been reported.

Illnesses began between Aug. 9 and Nov. 10, federal officials said. Cases were reported in Arizona, California, Illinois, Kentucky, Minnesota, North Carolina, New Jersey, Oregon, Pennsylvania, Rhode Island, Texas and Washington.

Investigators have

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