This undated image provided by ByHeart shows ByHeart formula products.(ByHeart via AP)

ByHeart, a manufacturer of organic baby formula, recalled all of its products sold nationwide Tuesday, days after some batches were recalled in an expanding outbreak of infant botulism.

At least 15 babies in 12 states have been sickened in the outbreak since August, with more cases pending, according to state and federal health officials. All of the infants were hospitalized after consuming ByHeart formula, officials said. No deaths have been reported.

ByHeart officials expanded the voluntary recall from two lots announced Saturday to all products in consumers’ homes and in stores. That includes ByHeart Whole Nutrition Infant Formula and Anywhere Pack pouches of powdered formula. The company sells about 200,000 cans of infant formula a month online and in stores such as Target, Walmart, Albertsons and Whole Foods, according to Dr. Devon Kuehn, chief medical officer.

Parents and caregivers who have the formula in their homes “should immediately discontinue use and dispose of the product,” Kuehn said.

California health officials earlier confirmed that a sample from an open can of ByHeart baby formula fed to an infant who got sick contained the toxin-producing type of bacteria.

The U.S. Food and Drug Administration recommended that ByHeart expand its recall because of the number of ill infants that reported consuming the formula, the identification of additional lot codes, the growing case count and the results of the California testing. The FDA is investigating 84 cases of infant botulism detected since August. Of those, 15 consumed ByHeart formula, the agency said in a statement.