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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2017 Outbreak of E. coli O157:H7 Linked to Animal Exposure, Utah

In the summer of 2017 local, state and federal public health officials investigated an outbreak of E. coli O157:H7 infections in the Hildale/Colorado City community near the Utah and Arizona border. Twelve case-patients met the case definition. Eight were primary cases. Nine patients were hospitalized. Four patients developed Hemolytic Uremic Syndrome (HUS). Two patients died. Ten patients were under 5 years old. Investigators conducted a case-control study with 2 primary case patients and 16 controls. Sixty-seven percent of cases versus 19% of controls reported playing in an area that had manure (matched odds ratio; 95% CI, 0.8-71.3). Horse and cow manure samples collected from a case-patient's household yielded the outbreak strain. No common food or water source was identified. Contact tracing identified epidemiologic links between primary and secondary cases that supported person-to-person transmission.

  • Outbreak began:
  • June 2017
  • Affected Country:
  • US
  • Affected States/Territories:
  • Utah
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Animal exposure
  • Molecular Results Available:
  • Unknown
  • Test Results:
  • None
  • Location(s):
  • Farm, person-to-person
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 12
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 12
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 9
  • Any Deaths:
  • Yes
  • Number Dead:
  • 2

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