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Infant Botulism Outbreak Linked to ByHeart Formula: A Comprehensive Update
January 27, 2026 – The Centers for Disease Control and Prevention (CDC) continues to investigate an outbreak of infant botulism linked to ByHeart Whole Nutrition infant formula. This outbreak, initially identified in November 2025, has now been traced back to December 2023, with a total of 51 confirmed cases across 19 states . While no deaths have been reported, the situation underscores the critical importance of vigilant monitoring and swift action in safeguarding infant health.
Understanding Infant Botulism
Infant botulism is a rare but serious illness caused by Clostridium botulinum spores.These spores, when ingested, can germinate in a baby’s gut and produce a hazardous toxin. Unlike botulism in adults, which often stems from improperly canned foods, infant botulism typically arises from consuming food contaminated with soil containing these spores. Infant





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