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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2002 Outbreak of E. coli O157:H7 at a Spokane Dance Camp Linked to Lettuce

An outbreak of E.coli O157:H7 occurred among attendees of a dance camp held between July 11-14 on the campus of Eastern Washington University. The camp was for middle and high school girls. Attendees were from Washington, Montana, and Minnesota. Some of the ill girls attended a church camp in Spokane at the conclusion of the dance camp. Secondary cases were subsequently reported at the church camp and also in the girls' home communities. The cases shared a Pulsed Field Gel Electrophoresis (PFGE), genetic fingerprint, pattern. Case-control study results strongly showed that the Caesar salad, made with Romaine lettuce and served during the July 11 dinner meal and the July 12 lunch, was associated with illness.

  • Outbreak began:
  • July 2002
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota, Washington
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Vegetable, Leafy greens, Romaine lettuce
  • Molecular Results Available:
  • Yes
  • Test Results:
  • Unknown
  • Location(s):
  • Dance camp
  • Brand Name(s):
  • None
  • Product Subject to Recall:
  • No
  • Total ill:
  • 78
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 45
  • Number Probable Cases:
  • 33
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Unknown
  • Number Hospitalized:
  • Unknown
  • Any Deaths:
  • No
  • Number Dead:
  • 0

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