Global & Disaster Medicine

CDC: Multistate STEC O157:H7 outbreak tied to nut butter


image of bowl of flour


  • CDC, multiple states, and the U.S. Food and Drug Administration (FDA) are investigating a multistate outbreak of Shiga toxin-producing Escherichia coli( O157:H7 (STEC O157:H7) infections.
    • Twelve people infected with the outbreak strain of STEC O157:H7 have been reported from five states.
    • Six ill people have been hospitalized. Four people developed hemolytic uremic syndrome, a type of kidney failure, and no deaths have been reported.
    • Eleven of the 12 ill people in this outbreak are younger than 18 years old.
  • Epidemiologic evidence available at this time indicates that I.M. Healthy brand SoyNut Butter is a likely source of this outbreak. I.M. Healthy brand SoyNut Butter may be contaminated with E. coli O157:H7 and could make people sick.
  • CDC recommends that consumers do not eat, and childcare centers, schools, and other institutions do not serve, any I.M. Healthy brand SoyNut Butter varieties and sizes, or I.M. Healthy brand granola coated with SoyNut Butter.
    • Even if some of the SoyNut Butter or granola was eaten or served and no one got sick, throw the rest of the product away. Put it in a sealed bag in the trash so that children, pets, or other animals can’t eat it.
  • This investigation is ongoing and quickly changing. CDC will provide updates as more information becomes available.

	Case Count Map: People infected with the outbreak strain of E. coli O157:H7, by state of residence, as of March 2, 2017

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