moraxella canis moraxella canis moraxella canis is a gram-negative, oxidase-positive bacterium in the genus moraxella. the organism is considered normal oral flora of cats and dogs, and it is not commonly attributed to infection in healthy humans. however, the organism has been reported to cause sepsis in an immunocompromised individual. additionally, m. canis was isolated from a dog bite wound in sweden and from an ulcerated supraclavicular lymph node of a patient. moraxella canis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: pseudomonadales family: moraxellaceae genus: moraxella species: m. canis binomial name moraxella canisjannes et al. 1993 type strain atcc 51391, ccm 4590, ccug 26883, ccug 8415 a, cip 103801, dsm 18277, lmg 11194, uzg n7