E. Coli O157:H7

including other Shiga toxin-producing E. coli

Escherichia coli O157:H7 is a bacterium that infects the intestinal tract and may produce a toxin that affects other parts of the body as well. E. coli O157:H7 infections can occur as isolated cases or as part of an outbreak; cases are seen more frequently during the summer months.

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Last Revised: January 29, 2015