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![Download a high-resolution (300dpi) digital image](https://webarchive.library.unt.edu/eot2008/20081103161619im_/http://www.ars.usda.gov/is/graphics/photos/downloadbutton.gif)
Image Number K9090-1 |
Technician Carolyn Johnson uses monoclonal antibodies to confirm E.
coli O157:H7 presence in cattle fecal samples.
Photo by Keith Weller.
640 pixels wide: (k9090-1.jpg)
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Last Modified: 05/23/2006
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