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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2015-2019 Multistate Outbreak of Salmonella (Multiple Seriotypes) Linked to Contact with Pig Ear Dog Treats

In early July 2019 the CDC announced an outbreak of human infections of Salmonella I 4,[5],12:i:-, Infantis, Newport, and London linked to contact with pig ear dog treats. On October 30, 2019 the CDC declared the outbreak over. In total there were 154 reported cases from 34 states. Thirty five people were hospitalized. There were no deaths. Illnesses started on dates ranging from June 16, 2015 to September 13, 2019. During the investigation officials from Kansas, Michigan, Pennsylvania, and FDA pig ear treats at retail locations where ill people reported buying the products or their suppliers and distributors. Multiple serotypes of Salmonella were isolated in the samples. A search of the CDC PulseNet database found that people had been infected with some of these strains, including Salmonella Infantis, Salmonella London, and Salmonella Newport. Some of these illnesses dated back to 2015. A common supplier of pig ear treats in this outbreak was not identified. On July 3, 2019 Pet Supplies Plus recalled bulk pig ears stocked in open bins because they might be contaminated with Salmonella. On July 26, 2019 The Lennox Intl Inc located in Edison, New Jersey voluntarily recalled its Natural Pig ears because of the potential for contamination with Salmonella. On July 30, 2019 Lennox Intl Inc expanded their recall. Whole genome sequencing analysis of Salmonella isolates from 30 ill people predicted antibiotic resistance or decreased susceptibility to ampicillin, ciprofloxacin, gentamicin, nalidixic acid, streptomycin, sulfisoxazole, tetracycline, and trimethoprim-sulfamethoxazole. Testing of one clinical isolate using standard antibiotic susceptibility testing methods by CDC’s National Antimicrobial Resistance Monitoring System (NARMS) provided comparable results. These antibiotic-resistant infections may be difficult to treat with commonly recommended antibiotics, and may require a different antibiotic choice.

  • Outbreak began:
  • October 2015
  • Affected Country:
  • US
  • Affected States/Territories:
  • California, Arizona, New York, Minnesota, Wisconsin, Oregon, Utah, Colorado, Iowa, Washington, Maryland, Michigan, North Carolina, New Hampshire, Ohio, Pennsylvania, Virginia, Hawaii, North Dakota, Kansas, Massachusetts, Alabama, Connecticut, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maine, Missouri, New Jersey, South Carolina, Texas
  • Organism(s):
  • Salmonella
  • Vehicle(s):
  • Pig Ear Pet Treats
  • Molecular Results Available:
  • Unknown
  • Test Results:
  • None
  • Location(s):
  • Retail
  • Brand Name(s):
  • Pet Supplies Plus, The Lennox Intl Inc
  • Total ill:
  • 154
  • Number ill by Case Definition Known:
  • Yes
  • Number Laboratory Confirmed Cases:
  • 154
  • Number Probable Cases:
  • 0
  • Number Possible Cases:
  • 0
  • Anyone Hospitalized:
  • Yes
  • Number Hospitalized:
  • 35
  • Any Deaths:
  • No
  • Number Dead:
  • 0

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