Where People Got Sick: Infant Botulism Outbreak, June 2026

For Everyone

Key points

  • This outbreak is over.
  • CDC, FDA, the California Department of Public Health Infant Botulism Treatment and Prevention Program, and public health officials in several states investigated a multistate outbreak of infant botulism linked to powdered infant formula.
  • Epidemiologic, traceback, and laboratory data showed that Nara Organics Whole Milk Organic Infant Formula was contaminated and made infants sick.
  • Data indicate a common source of contamination for this outbreak and a 2025 outbreak linked to ByHeart Whole Nutrition Infant Formula.
  • Although this outbreak is over, powdered infant formula has a long shelf-life. If you still have any of the recalled infant formula from Nara Organics in your home, do not feed it to your infant. Throw it away.

Where sick people live

This map shows where the 4 infants in this infant botulism outbreak lived.

Content Source
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
About This Page
Published: June 13, 2026
Updated: August 27, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: August 27, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.