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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2004 Salmonella Enteritidis Linked to Consumption of Eggs, Mora, Minnesota

A state epidemiologist performing a review of the Salmonella Enteritidis cases from the past months noted that three of the cases had reported eating at the same restaurant in Mora, Minnesota. Further investigation showed that all three cases were the same genetic subtype (SE1B1) and the same phage (13a). An investigation was opened to find more cases and the contaminated food. Cases were defined as a person with a S. Enteritidis SE1B1 infection who reported eating at the restaurant prior to symptom onset, or who worked at the restaurant. A total of four cases were identified. An environmental inspection of the restaurant found multiple opportunities for contamination of foods. In particular, holding temperature violations of meats and eggs were noted, as well as unsanitary wiping cloths used as hand wipes. Both pooled and shelled eggs had temperature violations and improper storage. Egg containing mixtures were also kept near ready-to-eat foods and the cooks working with the raw egg containing foods handled ready-to-eat ones. A traceback on the eggs found the farm did not have any traces of Salmonella Enteritidis in its flock, and met health standards. Swabs at the restaurant did test positive for Salmonella Enteritidis SE1B1. The health department could not determine the definite source of the contamination but eggs, cross-contamination, and possible food worker contamination, were mentioned as possible vehicles of infection.

  • Outbreak began:
  • May 2004
  • Affected Country:
  • US
  • Affected States/Territories:
  • Minnesota
  • Organism(s):
  • Salmonella
  • Vehicle(s):
  • Eggs, Shell and Pooled Cross-contamination Food Worker
  • Molecular Results Available:
  • Yes
  • Test Results:
  • SE1B1 (Minnesota designation)
  • Location(s):
  • Restaurant
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 4
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 4
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 2
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • Yes

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