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Salmonella enteritidis in Canada

C Poppe1

  • 1Health of Animals Laboratory, Guelph, Ontario, Canada.

International Journal of Food Microbiology
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

Salmonella enteritidis prevalence in humans increased slightly in Canada. Common poultry strains, like Salmonella enteritidis phage types 8, 13, and 13a, are also prevalent in people, suggesting a link.

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Area of Science:

  • Food Safety
  • Microbiology
  • Public Health

Background:

  • Salmonella enteritidis (S. enteritidis) is a significant foodborne pathogen.
  • A slight increase in S. enteritidis prevalence in humans in Canada has been observed.

Purpose of the Study:

  • To investigate the prevalence of S. enteritidis in Canadian poultry and its association with human isolates.
  • To determine the effectiveness of phage typing for differentiating S. enteritidis strains.

Main Methods:

  • Nation-wide surveys of poultry flocks and environmental samples.
  • Analysis of S. enteritidis isolates from human cases.
  • Phage typing of S. enteritidis strains.
  • Antimicrobial sensitivity testing.

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Main Results:

  • S. enteritidis prevalence in Canadian humans rose from 9% to 12%.
  • Low prevalence of S. enteritidis in poultry flocks (2.7% layers, 3% broilers) and eggs (<0.06%).
  • Common poultry phage types (PT 8, 13, 13a) match prevalent human types, excluding PT 4.
  • Phage typing proved effective for strain differentiation.
  • 83% of poultry-associated S. enteritidis isolates were antimicrobial-sensitive.

Conclusions:

  • The study highlights a potential link between poultry and human S. enteritidis infections in Canada.
  • Further research is needed to understand virulence variations among S. enteritidis strains of the same phage type.