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Related Experiment Videos

Salmonella enteritidis control programs in the United States

J Mason1

  • 1Salmonella enteritidis Control Program, USDA, APHIS, Hyattsville, MD 20782.

International Journal of Food Microbiology
|January 1, 1994
PubMed
Summary

Rising Salmonella enteritidis (SE) in the US led to a traceback program. Testing and diverting eggs from infected flocks aimed to reduce SE outbreaks, with a pilot project in Pennsylvania showing promising results for a larger prevention program.

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Area of Science:

  • Food Safety
  • Veterinary Epidemiology
  • Public Health

Background:

  • Increased human salmonellosis cases linked to Salmonella enteritidis (SE) from 1985-1989.
  • Government-initiated traceback program in 1990 to identify and control SE sources.

Purpose of the Study:

  • To reduce SE outbreaks by diverting eggs from affected layer flocks.
  • To investigate the epidemiology and control of SE in poultry.
  • To inform a larger prevention program based on pilot project findings.

Main Methods:

  • Testing layer flocks for SE.
  • Diverting eggs from SE-positive flocks to pasteurization.
  • Implementing a program to eliminate SE from breeding flocks.
  • Conducting surveys of spent hens and liquid egg material.

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  • Initiating a pilot project in Pennsylvania (1992) to test control strategies.

    • Main Results:

    • SE was more prevalent than initially suspected, particularly in the northeastern and middle Atlantic states.
    • Initial SE rates did not decrease significantly in the first two years of the program.
    • The Pennsylvania pilot project provided data for a larger prevention initiative.

    Conclusions:

    • Diversion of eggs and flock elimination programs are key strategies for SE control.
    • Continued surveillance and targeted interventions are necessary to manage SE prevalence.
    • The pilot project demonstrated the feasibility of a large-scale SE prevention program.