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United States Department of Agriculture

Agricultural Research Service

Image Number D2159-11

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Image Number D2159-11

To determine the presence of Salmonella, Listeria, and non-O157:H7 E. coli in beef samples, technician Greg Smith (right) collects surface samples from boneless beef trim as microbiologist Mick Bosilevac prepares a sample for eventual analysis.

 

Photo by Stephen Ausmus.


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Last Modified: 3/29/2011