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Afipia felisJoe Segen2016-12-25T21:10:17+00:00
Definition A motile gram-negative, oxidase-positive bacterial rod which causes über rare cases of cat-scratch disease–CSD (most cases of CSD are caused by Bartonella henselae; rare cases of CSD are also attributed to Bartonella clarridgeiae).
Note: The genus name derives from an acronym, AFIP–Armed Forces Institute of Pathology, which was once regarded as the premier centre for studying pathology in the world, given the sheer volume of cases sent there for second opinions. In the attached image, the H&E stained section of lymphoid tissue demonstrates CSD in the upper left panel; the remaining images are electron micrographs.