Psychrobacter species are nonmotile, nonpigmented, aerobic, gram-negative coccobacilli
, although Gram staining results are often variable (7).
Although no characteristic Michaelis-Gutmann bodies were seen, the staining characteristics of the intracellular coccobacilli
were compatible with Rhodococcus equi, a pathogen associated with malakoplakia.
multocida colonies showed Gram negative coccobacilli
. These findings are in accordance with Purushothaman et al.
(1,2) Coxiella burnetii is a pleomorphic, obligate intracellular coccobacilli
with a gram-negative cell wall.
Pasteurella species are small, nonmotile, aerobic and facultative anaerobic, Gram-negative coccobacilli
, first isolated from wild hogs and birds in 1878, and characterized two years later by Pasteur.
Acinetobacter baumannii is an encapsulated, catalase-positive, non-motile, Gram-negative coccobacilli
The microscopic analysis identified the isolates as gram-negative bacteria, morphologically related to coccus, bacilli and coccobacilli
 Acinetobacter are non-motile bacilli or coccobacilli
. Identification of the genus was done on the basis of its morphology, gram staining, non-motility, positive catalase test and negative oxidase test.
Peripheral blood smears and tissue impressions revealed presence of large number of Gram negative, bipolar coccobacilli
organisms indistinguishable from Pasteurella spp.
Gram staining revealed gram-negative coccobacilli
. The biochemical profile was indicative of Pasteurella spp.
The genus Moraxella consists of aerobic gram-negative coccobacilli
, and it was first described in 1967.