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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2018 Outbreak of Norovirus Linked to Oysters from British Columbia, California

On May 1, 2018 California Department of Public Health officials reported that approximately 100 individuals had reported illness after consuming raw oysters grown in British Columbia. Oysters were sold in restaurants and at retail stores. Laboratory testing confirmed norovirus infections in California patients were genetically indistinguishable from norovirus found in Canadian patients who consumed contaminated oysters. Four oyster farms in Baynes Sound, British Columbia were linked to illnesses.

  • Outbreak began:
  • March 2018
  • Affected Country:
  • US
  • Affected States/Territories:
  • California
  • Organism(s):
  • Norovirus
  • Vehicle(s):
  • Raw oysters
  • Molecular Results Available:
  • Unknown
  • Test Results:
  • None
  • Location(s):
  • Restaurants, Retail
  • Brand Name(s):
  • Product Subject to Recall:
  • Unknown
  • Total ill:
  • 100
  • Number ill by Case Definition Known:
  • Unknown
  • Number Laboratory Confirmed Cases:
  • N/A
  • Number Probable Cases:
  • N/A
  • Number Possible Cases:
  • N/A
  • Anyone Hospitalized:
  • Unknown
  • Number Hospitalized:
  • Unknown
  • Any Deaths:
  • Unknown
  • Number Dead:
  • Unknown

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