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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2014 Outbreak of E. coli O157, Fond du Lac Tribe, Minnesota

In July 2014 Minnesota health and agriculture agencies investigated and outbreak of E. coli O157 among residents of the Fond du Lac reservation. Many of the ill cases attended a variety of events taking place in mid-July. A catering company in Cloquet, MN, Jim-N-Jo's Katering, was a suspected source as the company catered the majority of events taking place around the time period of interest. Fifteen cases of confirmed E. coli O157 were identified. Epidemiologic data implicated potato salad served at an Elder Picnic on July 11 and the outbreak strain of E. coli was isolated in a leftover sample of potato salad. However, some of the ill persons did not attend the picnic but attended other events where potato salad was not served. One common food item between the Elder picnic and the wedding was celery (cut up in the potato salad and served on a vegetable tray at the wedding. Investigators in California and Minnesota traced the lettuce to a producer in the Salinas Valley, California. Water and soil samples were collected for E. coli testing but all were "not found" for the pathogen.

  • Outbreak began:
  • July 2014
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota, Wisconsin, Ohio, Alabama, Indiana
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Celery
  • Molecular Results Available:
  • Yes
  • Test Results:
  • EXHX01.0238, EXHX01.0074, EXHX01.0696, EXHX01.0344, EXHX01.0248, EXHA26.1045, EXHA26.0621, EXHA26.1577
  • Location(s):
  • Tribal gatherings
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 57
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 27
  • Number Probable Cases:
  • 30
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 9
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • No

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