Food Safety Flashcards
Salmonella enterica subspecies enterica
Human pathogen of concern in EGGS and POULTRY MEAT
Causes disease in humans but most infections in apparent in poultry
Serovar of S. Enterica subsp enterica in EGGS
Serovar enteritidis
Serovar of S.enterica subsp enterica in meat
Various Serovars:
Infantis
Heidelberg
Enteritidis
Serovars of S.enterica subsp.enterica with up to 80% baby mortality
Serovars gallinarum and pullorum
These are reportable!
Federal testing / eradication campaign against Salmonella resulted in establishment of
National Poultry Improvement Plan (NPIP)
NPIP resulted in near eradication of …
Samonellla Serovars gallinarum and pullorum
Serovars gallinarum and pullorum
Poultry adapted Salmonella strains
Eradication —> power vacuum that allowed human pathogenic strains to proliferate
Poultry can be infected with Salmonella by these routes
Systemically or enterically
Most common cause of Salmonella in poultry
Enteric
Entry of Salmonella into eggs
- Deposition during egg formations (Salmonella colonization of ovaries); contaminated holds only laid sporadically
- Egg contamination - due to permeability of shells (fecal contamination)
FDA Egg Rule
Federal law regulating commercial egg production (est 2009)
Regulated facilities: Any flock >3000 layers; any who store/transport eggs
Control of vertical transmission of Salmonella
Pullets raised under NPIP “SE monitored” conditions from NPIP-sourced parent stock
Egg testing
Tries to differentiate between transient GI shed of Salmonella vs systemic infection by testing over extended time
1000 eggs tested every 2 wks; 4 consecutive must be negative for normal production
Safety of meat and poultry mean in US is regulated by …
USDA’s Food Safety and Inspection Service (FSIS)
- smaller plants exempt from having USDA physically present
- poultry healthy a slaughter/practice sanitary
Food safety is the PRIORITY
Salmonella detection in meat industry
ANY serovar of Salmonella detected is recorded
REGARLESS of its human pathogenicity
