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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European Outbreak Imported Iceberg Lettuce 1994

Several European countries, including Norway, Sweden, and the United Kingdom, experienced a sudden increase in the number of Shigella sonnei infections. Epidemiologic evidence implicated iceberg lettuce imported from Spain. A number of the case-patients had double infections with other enteropathogens. In one county in Norway, in June, at least 45 outbreaks of gastroenteritis occurred in which iceberg lettuce was a common vehicle. Shigella was not isolated from the lettuce, but Salmonella and high fecal coliforms were identified. The imported iceberg lettuce harbored Escherichia coli strains showing resistance to several antibiotics. The outbreak subsided when imported iceberg lettuce was no longer available in the market.

  • Outbreak began:
  • May 1994
  • Affected Country:
  • US
  • Affected States/Territories:
  • Not Applicable
  • Organism(s):
  • Shigella
  • Vehicle(s):
  • Vegetable, Leafy Greens, Iceberg Lettuce
  • Molecular Results Available:
  • Unknown
  • Test Results:
  • None
  • Location(s):
  • Grocery stores
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 110
  • 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
  • Any References:
  • Yes

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