By JONEL ALECCIA, Associated Press

As cases of potentially deadly botulism in babies who drank ByHeart infant formula continue to grow, state officials say they are still finding the recalled product on some store shelves.

Investigators in at least three states found ByHeart formula for sale a week after the New York-based company recalled all products nationwide, officials told The Associated Press.

At least 31 babies in 15 states who drank ByHeart formula have been hospitalized and treated for infantile botulism since August, federal health officials said Wednesday. They range in age from about 2 weeks to about 6 months, with the most recent case reported on Nov. 13.

No deaths have been reported.

Stephen Dexter holds a container of ByHeart baby formula, which was recently recall

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