Health agencies across the United States are watching a growing number of infant botulism cases linked to ByHeart infant formula. The outbreak started in August, and 31 babies in 15 states have been taken to the hospital. The latest case was reported on November 13. Investigators found that some stores in Oregon, Minnesota, and Arizona were still selling the formula, even after a nationwide recall was announced. Tests from an independent laboratory confirmed that some samples contained Clostridium botulinum, a bacterium that can make a dangerous toxin. This toxin can cause serious illness in babies under one year old, so health officials called the situation a major concern.

The U.S. Food and Drug Administration visited ByHeart factories in Iowa and Oregon to learn how the contamination happened. Health agencies told families to stop using any ByHeart formula and to keep recalled cans in case testing is needed later. California created a new hotline because many caregivers were calling for information about possible symptoms. Officials explained that signs such as weak crying, trouble feeding, or constipation should be treated by a doctor right away. The situation shows the importance of strong safety checks and careful communication during national recalls.