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Initially unrecognized distribution of a commercially cooked meat product contaminated over several months with Salmonella serotype Infantis

  • K. S. KOHL (a1) and T. A. FARLEY (a1)

Abstract

An outbreak of salmonellosis occurred among 63 wedding participants. The outbreak was investigated through cohort, laboratory, and environmental studies. Consumption of rice-dressing made from a commercially cooked, meat-based, rice-dressing mix was strongly associated with illness. Nineteen patient isolates, six company/grocery store isolates cultured from the rice-dressing mix, and one environmental isolate from a pump in the production line were of an identical outbreak strain of Salmonella Infantis characterized by pulsed-field gel electrophoresis. In the production line, cooked rice-dressing mix tested negative for S. Infantis before and positive after contact with the contaminated pump. The dressing-mix had an estimated 200 colony-forming units of salmonella per gram of product, and > 180 000 pounds were distributed in 9 states for [ges ] 2 months before contamination was recognized. Food manufacturers should be required to use systematic, hazard analysis critical control point risk management practices for all processed meat products, validated by periodic microbiologic monitoring of the end product.

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Copyright

Corresponding author

Author for correspondence: National Immunization Program, Centers for Disease Control and Prevention, 1600 Clifton Rd, Mailstop E-61, Atlanta, GA 30333.

Initially unrecognized distribution of a commercially cooked meat product contaminated over several months with Salmonella serotype Infantis

  • K. S. KOHL (a1) and T. A. FARLEY (a1)

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