Some product has remained on store shelves despite the recall, according to state officials and the U.S. Food and Drug Administration.

ByHeart said it can't rule out that all of its baby formula across all product lots could be contaminated, citing recent test results.

ByHeart announced on Thursday that its own testing identified the bacterium that causes botulism in its baby formula, which is linked to an ongoing infant botulism outbreak that has doubled since last ...

In 2022, the year ByHeart started making formula, the company recalled five batches of infant formula after a sample at a ...