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United States Department of Agriculture

Agricultural Research Service

Image Number D1440-1

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Image Number D1440-1

Microbiologist Judy Stabel evaluates the results of the interferon-gamma blood test to diagnose cows infected with M. avium subspecies paratuberculosis

 

Photo by Peggy Greb.


640 pixels wide: (d1440-1.jpg)




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Last Modified: 11/24/2009
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