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.

Prevalence and Levels of Listeria Monocytogenes in Ready-to-Eat Retail Meat and Poultry Products (Drexel Univ)


Quantify the occurrence of foodborne pathogens in select foods: a.) Screen foods for the presence/absence of target pathogens. b.) Determine levels of target pathogens in selected foods. c.) Subtype multiple isolates from each positive sample. d.) Conduct proximate composition analyses on selected foods.

More information

Approach: <BR/>
Work with FDA, USDA/ARS, and USDA/FSIS and associated industry partners to collect/purchase targeted food samples from retail establishments. Test samples for presence/absence of target pathogens, determine the levels of the pathogen(s) in each positive sample by direct plating or enrichment. Retain multiple isolates from each positive sample for subsequent molecular subtyping and perform chemical analyses on food samples as appropriate.

Luchansky, John
USDA - Agricultural Research Service
Start date
End date
Project number
Accession number