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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2012 Outbreak of Norovirus Associated with a Restaurant, Roseville, Minnesota

In April 2012 ten restaurant patrons became ill with norovirus following a meal on April 22. Nine persons from one group and one person from a second group met the case definition. The median incubation period was 41 hours (range 14, to 105 hours). The median duration of illness was 3.5 days (range, 1 to 5 days). Stool samples submitted by two ill patrons from the first group tested positive for norovirus GII. Two cases were likely secondary person-to-person transmission of norovirus. The limited number of non-ill controls precluded a meaningful statistical analysis of food exposures. Ramsey County Environmental Health sanitarians interfviewed 21 restaurant employees. One reported an onset of vomiting and diarrhea on April 23. This employee worked as a cashier and server on April 22 but could not recall if he prepared foods. Public health investigators concluded this was an outbreak of norovirus associated with a restaurant in Roseville, Minnesota. No vehicle was identified. The source of transmission was not identified.

  • Outbreak began:
  • April 2012
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota
  • Organism(s):
  • Norovirus
  • Vehicle(s):
  • Unknown
  • Molecular Results Available:
  • Yes
  • Test Results:
  • GII
  • Location(s):
  • Restaurant
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 10
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 2
  • Number Probable Cases:
  • 8
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • No
  • Number Hospitalized:
  • 0
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • No

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