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The Centers for Disease Control and Prevention reports that there are now 51 patients in the outbreak, all of whom consumed ByHeart infant formula. ByHeart's and FDA's investigations into the root cause of the outbreak are ongoing, and at this time, FDA cannot rule out the possibility that contamination might have affected all ByHeart formula products," according to the CDC's update. "In response, CDC broadened the case definition for the outbreak investigation to include any infant with botulism who was exposed to ByHeart formula at any time since the product's release in March 2022." Tests by the FDA and ByHeart have found the company's powdered infant formula to be contaminated with Clostridium botulinum spores. Parents and caregivers are urged to stop using ByHeart infant formula immediately and seek medical help if their babies develop signs of infant botulism."