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E. coli common bacteria; only some cause illness
.There are hundreds of kinds of E. coli, or Escherichia coli. It's a common and mostly harmless bacteria found in the gut of warm-blooded animals, including humans.But some — like the O104:H4 strain identified in Europe — produce a toxin and can make people sick.Contaminated foods or liquids can cause severe stomach cramps and diarrhea, which is often bloody, and vomiting. Most people