• Hemolytic uremic syndrome (HUS)
  • Diarrhea and one of the following circumstances:
    • due to diarrhea hospitalized children younger than 7 years
    • bloody diarrhea
    • hemorrhagic colitis
    • necrotising enterocolitis
  • Diarrhea during the last week and one of the following conditions:
    • hemolytic anemia
    • acute renal failure
    • Immunocompromising diseases or therapies
  • Cluster of gastro-enteritis (two or more infections with an epidemiological link) in e.g.:
    • kindergarten
    • households
    • schools
    • hospitals
  • Contact persons of EHEC infections (e.g. within a family)