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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2013 E. Coli O57:H7 Infections Associated with Swimming in Lake Minnetonka

In July 2013 the Minnesota Department of Health (MDH) investigated an outbreak of E. Coli O157:H7 among three individuals who shared an indistinguishable strain by PFGE, pattern MN179ECB13 (Minnesota designation). All three cases reported boating and swimming as part of separate groups in the Big Island area of Lake Minnetonka on July 4. The source of the bacteria in the water was not identified. Lakes can be contaminated from multiple sources including animal waste, individual septic systems or sewage spills, improper boat waste disposal, or ill swimmers.

  • Outbreak began:
  • July 2013
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Recreational water
  • Molecular Results Available:
  • Yes
  • Test Results:
  • MN179ECB13 (Minnesota designation)
  • Location(s):
  • Lake Minnetonka
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 3
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 3
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 1
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • No

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