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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Hudson Foods Ground Beef Patties and Burgers 1997

An outbreak of Escherichia coli O157:H7 infections associated with eating a nationally distributed commercial brand of frozen beef patties and burgers was detected in Colorado. Genetic fingerprinting of the E.coli O157:H7 isolated from the ill persons showed high, genetic similarity among the strains. Eleven (79%) of 14 patients reported eating frozen, pre-formed, ground beef patties, or burgers, at least once during the seven day period preceding illness onset; eight specifically recalled eating Hudson Foods brand product, and three, who could not recall a specific brand name, identified package labeling consistent with Hudson Foods brand. Hudson Foods beef burgers collected from the freezers of two of the 15 patients bore the identical lot number; both yielded E. coli O157:H7, upon culture, that was indistinguishable from the outbreak strain. The product was recalled nationwide. Burger King Restaurants were a major customer for this hamburger.

  • Outbreak began:
  • August 1997
  • Affected Country:
  • US
  • Affected States/Territories:
  • N/A
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Beef, Ground Beef
  • Molecular Results Available:
  • Yes
  • Test Results:
  • Unknown
  • Location(s):
  • Grocery stores
  • Brand Name(s):
  • Hudson Beef Burgers
  • Total ill:
  • 15
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 15
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 5
  • Any Deaths:
  • No
  • Number Dead:
  • 0

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