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How does a food facility incorporate the finding and fixing of potential sources of contamination (e.g., niches) before food safety is compromised?
Understanding the FDA’s goal is a good starting point:
Also, it's important to understand the scientific definition of "seek and destroy": Seek and destroy is an investigative technique that includes an aggressive, systematic approach to identifying harborage sites and niche locations where microbes (e.g., L. monocytogenes, Salmonella, E. coli O157:H7 etc.) survive or persist despite regular cleaning and sanitation measures.
The FDA incorporated the “seek and destroy” approach used by the Food Safety and Inspection Service (FSIS) of the U.S. Department of Agriculture (USDA) into the draft guidance on controlling L. monocytogenes in RTE products (FDA 2017). One of the objectives was to bring uniformity in the federal approach in RTE facilities that produce foods that are regulated by both USDA/FSIS and FDA. Integrating these approaches along with the food safety requirements under FSMA, should lead to more effective efforts to control L. monocytogenes in RTE products.Although the above FDA’s perspective is for L. monocytogenes, the concept can be applied to other potential foodborne pathogens.
Niche: A small area (e.g., cracks, holes, etc.) that can provide shelter to microorganisms and is protected from the general sanitation process.
Harborage site: Growth niche that contains the pathogen or its indicator. Sites where the pathogen has established itself and may be multiplying.
Vector swabbing: Vector sampling involves collection and testing of additional swab samples in a “star burst” pattern around the initial positive site.
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