afipia felis afipia felis afipia felis is the type species of the afipia bacterial genus. it was formerly thought to cause cat-scratch disease. it is a gram-negative, oxidase-positive, nonfermentative rod in the alpha-2 subgroup of the class proteobacteria. it is motile by means of a single flagellum. it is noted for having the longest authority citation of any accepted species. afipia felis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: nitrobacteraceae genus: afipia species: afipia felisbrenner et al. 1991