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Listeria monocytogenes, photomicrograph of brain stem post-mortem specimen
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Listeria monocytogenes, photomicrograph of brain stem post-mortem specimen

    Tissue smear of post-mortem brain stem samples of an animal with Listeriosis. Note the presence of large numbers of the V-shaped gram-positive bacteriumListeria monocytogenes (Gram stain, high power).

Courtesy of Dr. John Prescott.

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Listeriosis in Animals