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What are the symptoms of E. coli infection?

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You’ll probably start to feel ill 2 to 5 days after you’ve ingested the E. coli bacteria. The most common symptoms are:

You may not have a fever. If you do, it may be slight.

Healthy people infected with E. coli usually feel better within a week, but some people have a serious complication called hemolytic uremic syndrome, which affects the kidneys. This is more likely to happen to older people and children.

  • Abdominal cramps
  • Diarrhea, which may be bloody
  • Nausea
  • Constant fatigue

From: What is E. Coli? WebMD Medical Reference

SOURCES:

CDC: “E. coli.”

Johns Hopkins Health Library: “Escherichia coli O157:H7,” “Escherichia coli.”

National Institute of Allergy and Infectious Disease: “E. coli.”

Mayo Clinic: “Diseases and Conditions -- E. coli.”

KidsHealth.org (Nemours Foundation): “E. coli.”

World Health Organization: “E. coli Fact Sheet.”

Reviewed by Sabrina Felson on December 21, 2016

SOURCES:

CDC: “E. coli.”

Johns Hopkins Health Library: “Escherichia coli O157:H7,” “Escherichia coli.”

National Institute of Allergy and Infectious Disease: “E. coli.”

Mayo Clinic: “Diseases and Conditions -- E. coli.”

KidsHealth.org (Nemours Foundation): “E. coli.”

World Health Organization: “E. coli Fact Sheet.”

Reviewed by Sabrina Felson on December 21, 2016

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How is E. coli infection treated?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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