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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D602-1

Research leader Paula Fedorka-Cray (left) and technician Lori Ayers perform antimicrobial susceptibility testing on a plate of bacterial cultures. The bacteria were exposed to a range of antimicrobial drugs used in veterinary and human medicine.

Photo by Peggy Greb.


640 pixels wide: (d602-1.jpg)




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Last Modified: 9/26/2006