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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2016 Outbreak of E. coli O157 at Matador Restaurant, Seattle, Washington

In September 2016, Public Health Seattle King County (PHSKC) and the Washington Department of Health (WDOH) investigated an outbreak of E. coli O157:H7 that occurred among patrons of Matador Restaurant located at 2221 NW Market Street in Seattle. PHSKC received the first report of illness on August 22, 2016. Four additional cases of E. coli O157 with exposure to food from Matador were detected. The WDOH Public Health Laboratory conducted genetic testing by Pulsed Field Gel Electrophoresis (PFGE) on isolates cultured from specimens of the five ill cases. Results showed that all 5 patients were infected with a genetic strain of E. coli O157:H7 identified as PulseNet pattern combination “EXHX01.0042/EXHA26.0536.” A search of PulseNet revealed that two other Washington state residents and three out-of-state residents (one each in Colorado, Idaho and New York) were positive for the same strain. Illness onset dates for the 10 patients ranged from August 17 to August 26, 2016. Ages ranged from 1 to 33 years (median 20 years). Six were hospitalized. Two patients developed Hemolytic Uremic Syndrome (HUS) and no deaths were reported. Seven of the ten patients ate at Matador between August 14 and August 19, 2016. This includes a resident of Colorado who visited Seattle and ate at Matador. The cases in New York and Idaho did not travel to Washington during the incubation period. In addition, one of the 10 cases resided in Skagit County, Washington and had no Matador exposure. The three non-Matador cases reported consuming ground beef from different sources in the week before symptom onset. No other commonalities were found. The outbreak was assigned Cluster/Outbreak Code 1609WAEXH-1

  • Outbreak began:
  • August 2016
  • Affected Country:
  • US
  • Affected States/Territories:
  • New York, Colorado, Washington, Idaho
  • Organism(s):
  • E. coli O157:H7
  • Vehicle(s):
  • Beef
  • Molecular Results Available:
  • Yes
  • Test Results:
  • EXHX01.0042/EXHA26.0536
  • Location(s):
  • Restaurant
  • Brand Name(s):
  • Matador
  • Product Subject to Recall:
  • No
  • Total ill:
  • 10
  • 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:
  • Yes
  • Number Hospitalized:
  • 6
  • Any Deaths:
  • No
  • Number Dead:
  • 0

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