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 Norovirus Associated with a Restaurant, Minneapolis

A group of University of Minnesota graduate students became ill with norovirus after eating at a restaurant located in Minneapolis on November 16, 2013. Additionally, members of a family who ate at the restaurant on November 17 also became ill. Staff from the Minnesota Department of Health (MDH) and the Hennepin County Public Health Department (HCPHD) conducted an outbreak investigation. Nineteen restaurant patrons met the case definition. Sixteen were university students and three were from the second group. The student group dined at a private buffet. The family group shared several food items served safmily-style. Twenty-four controls were interviewed. No food was statistically associated with illness; however, 18 of 19 cases consumed ice, including 5 of the cases who did not eat any food items. These individuals only consumed ice water or cocktails with ice. One stool sample collected from a case was positive for norovirus GII. MDH sanitarians visited the restaurant on November 19 to conduct an inspection and interview employees. No critical violations were noted. Three employees reported illness prior to or on the implicated meal dates. Investigators concluded this was a foodborne outbreak of norovirus. No specific food vehicle was identified but the most plausible scenario is that ice and other ready-to-eat food items were contaminated by ill food workers.

  • Outbreak began:
  • November 2013
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota
  • Organism(s):
  • Norovirus
  • Vehicle(s):
  • Ready-to-eat foods
  • Molecular Results Available:
  • Yes
  • Test Results:
  • GII
  • Location(s):
  • Restaurant
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 19
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 1
  • Number Probable Cases:
  • 18
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • No
  • Number Hospitalized:
  • 0
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • No

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