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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K4134-6

Veterinary pathologist Norman Cheville (left), molecular biologist Shirley Halling, and National Animal Disease Center director Harley Moon analyze DNA sequence reactions of a vaccine made from a modified Brucella abortus bacterium.

Photo by Keith Weller.



640 pixels wide: (k4134-6.jpg)




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Last Modified: 5/23/2006
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