An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Epidemiology and Ecology of Salmonella Enteritidis in Commercial Poultry Flocks

Investigators
Mitchell, Bailey; Swayne, David; Holt, Peter
Institutions
USDA - Agricultural Research Service
Start date
1996
End date
2001
Objective
  1. Identify the sources of introduction of Salmonella enteritidis (SE) and other salmonellae into commercial poultry flocks and the reservoirs where they persist in the poultry housing environment.
  2. Determine how SE spreads within and between commercial poultry flocks. Identify unique characteristics of Salmonella isolates, strains, serotypes, and phage types and apply this information to determine the epidemiological relationships between isolates from different sources.
More information
Samples taken from diverse locations in commercial poultry housing facilities, and from the birds themselves, will be tested for S.enteritidis and other enteroinvasive salmonellae. Different sampling and testing methods will be selected or developed and then evaluated for their effectiveness in detecting SE. Samples will be obtained from flocks of different ages and housed using different management systems. Experimentally infected chickens will be used to establish or verify fundamental aspects of the host-pathogen relationship between SE and poultry. Statistical modeling tools will be applied to establish the significance of and relationships between individual sources and reservoirs of salmonellae in commercial poultry flocks. Molecular analytical methods will be applied to characterize and differentiate Salmonella isolates.
Funding Source
Agricultural Research Service
Project number
6612-42000-022-00D
Accession number
400984
Categories
Salmonella
Prevention and Control
Commodities
Meat, Poultry, Game