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ARS Home Office of Communications Images Photos Apr09





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Image Number D1335-16 To better understand how bacteria evolved the ability to get into eggs, veterinary medical officer Jean Guard-Bouldin and technician Cesar Morales analyze how many colony types are present in the organs of chickens infected with *Salmonella*.  Photo by Stephen Ausmus.  640 pixels wide: (d1335-16.jpg)   Please visit our Image Gallery


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