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 Multistate Outbreak of Salmonella Enteritidis Linked to Romaine Lettuce

During April-June 2017, CDC, FDA and state public health partners investigated an outbreak (1704MLJEG-2) of 151 Salmonella Enteritidis infections reported from 36 states. Patients ranged in age from <1 to 97 years. Among 114 patients with available information, illness onset dates ranged from March 2, 2017 to May 23, 2017. Thirty one people were hospitalized. No one died. Epidemiologic exposure information was available for 63 patients. Among these patients, 47/63 (75%) reported eating romaine lettuce in the week prior to illness onset compared to 46% of US residents surveyed for the 2006-2007 FoodNet Population Survey. No other exposure reached a similar level of statistical significance. FDA and states initiated an informational traceback for single cases and restaurant clusters with exposure to romaine lettuce and whole head lettuce. The lettuce supplied to the points of service converged to two major leafy green companies. However, traceback of romaine lettuce converged on a single brand, supplier, or growing region.

  • Outbreak began:
  • March 2017
  • Affected Country:
  • US
  • Affected States/Territories:
  • California, Arizona, New York, Minnesota, Wisconsin, Oregon, Utah, Iowa, Washington, Maryland, Michigan, North Carolina, Ohio, Pennsylvania, Virginia, Arkansas, Idaho, South Dakota, New Mexico, Kansas, Massachusetts, Vermont, Florida, Georgia, Illinois, Indiana, Kentucky, Missouri, Nebraska, Nevada, New Jersey, Oklahoma, South Carolina, Texas
  • Organism(s):
  • Salmonella
  • Vehicle(s):
  • Romaine lettuce
  • Molecular Results Available:
  • Yes
  • Test Results:
  • JEGX01.0049, JEGX01.0047, JEGX01.1186
  • Location(s):
  • retail, restaurant
  • Brand Name(s):
  • Product Subject to Recall:
  • No
  • Total ill:
  • 151
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 151
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 31
  • Any Deaths:
  • No
  • Number Dead:
  • 0
  • Any References:
  • No

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