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  1. E. coli - Symptoms and causes - Mayo Clinic

  2. Escherichia coli - Wikipedia

  3. E. coli: Infection, Causes, Symptoms & Treatment - Cleveland Clinic

  4. E. coli - World Health Organization (WHO)

  5. E. coli (Escherichia coli) | E. coli | CDC - Centers for Disease ...

  6. Escherichia coli Infection - StatPearls - NCBI Bookshelf

  7. Questions and Answers | E. coli | CDC

  8. E. coli - Diagnosis and treatment - Mayo Clinic

  9. E. Coli Infection: Symptoms, Causes, Prevention, Risks & More - Healthline

  10. Escherichia coli (E. coli) | FDA - U.S. Food and Drug Administration