Foodborne Illness Outbreak Database

This database provides summaries of significant food and water related outbreaks occurring since 1984 caused by E. coli, Salmonella, Hepatitis A, Campylobacter and other pathogens. Read more »

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Wisconsin Self-Service Food Bar in an Elementary School 2000

An outbreak of E. coli O157:H7 occurred at an elementary school in Wisconsin. Illness was associated with eating brownies that were served in the school's self-service food bar on October 18. No brownies remained for testing. Stool testing of school lunch employees failed to find evidence of colonization with E. coli O157:H7. One student had been ill with E. coli O157:H7 eight days before the other illnesses began; the student used food bar while ill. The E. coli O157:H7 isolated from this student was a match to the isolates collected from the others. It seemed likely that a student had transmitted E. coli O157:H7 through the food bar.

  • Outbreak began:
  • October 2000
  • Affected Country:
  • US
  • Affected States/Territories:
  • N/A
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Breads and Bakery, Brownies, Cake
  • Molecular Results Available:
  • Yes
  • Test Results:
  • Unknown
  • Location(s):
  • School
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 29
  • Number ill by Case Definition Known:
  • Unknown
  • Number Laboratory Confirmed Cases:
  • N/A
  • Number Probable Cases:
  • N/A
  • Number Possible Cases:
  • N/A
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 4
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • Yes

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