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 Norovirus at a Long Term Care Facility, Thornton, Colorado

In April 2017 public health investigators in Adams County, Colorado investigated an outbreak of norovirus at a long term care facility located in Thornton. Nineteen people were ill. Eight were laboratory confirmed. No one was hospitalized and no one died. Investigators determined the outbreak was a point source outbreak through food contaminated by an ill food worker which later spread through person-to-person transmission.

  • Outbreak began:
  • April 2017
  • Affected Country:
  • US
  • Affected States/Territories:
  • Colorado
  • Organism(s):
  • Norovirus
  • Vehicle(s):
  • Unknown
  • Molecular Results Available:
  • No
  • Test Results:
  • None
  • Location(s):
  • Long Term Care Facility
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 19
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 8
  • Number Probable Cases:
  • 11
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • No
  • Number Hospitalized:
  • 0
  • Any Deaths:
  • No
  • Number Dead:
  • 0

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