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United States Department of Agriculture

Agricultural Research Service

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Image Number K9808-1

David Suarez, veterinary medical officer, and Suzanne DeBlois, biological science laboratory technician, prepare to load chicken tracheal swab samples into a real-time PCR machine.

Photo by Peggy Greb.

640 pixels wide: (k9808-1.jpg)

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Last Modified: 8/13/2016
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