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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2017-2018 Outbreak of Samonella I,4,[5], 12:i: Associated with Service Deli at Costco Warehouse in Issaquah, Washington

On September 26, 20187 officials at Public Health Seattle King County (PHSKC) announced an investigation of Salmonella I,4,[5], 12:i: infections spanning an 11 month period associated with food prepared in the service deli at the Costco Wholesale Warehouse located in Issaquah, Washington. Seven case patients experienced illness onset between August 28, 2017 and July 13, 2018. One person was hospitalized. There were no deaths. All 7 who got sick shopped at Costco in Issaquah; five bought ready-to-eat food from the service deli. Food purchase history could not be verified for one person and one was an employee at the deli. There is no evidence to indicate the service deli employee was the source of this outbreak.

  • Outbreak began:
  • August 2017
  • Affected Country:
  • US
  • Affected States/Territories:
  • Washington
  • Organism(s):
  • Salmonella
  • Vehicle(s):
  • Unknown
  • Molecular Results Available:
  • Unknown
  • Test Results:
  • None
  • Location(s):
  • Retail deli
  • Brand Name(s):
  • Costco Wholesale Warehouse
  • Product Subject to Recall:
  • No
  • Total ill:
  • 7
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 7
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 1
  • Any Deaths:
  • No
  • Number Dead:
  • 0

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