Brucella canis is a gram-negative coccobacillary
bacterium that primarily causes reproductive failure in dogs (1).
In Gram's staining pink, gram negative, coccobacillary
rods were observed (Fig.
This genus is constituted by Gram-negative, coccobacillary
, microaerophilic, non-spore-forming, immotile, intracellular facultative, and slow-growing bacteria .
The filaments appeared as short chains of rods and coccobacillary
elements, which are characteristic for organisms of the genus Nocardia.
In Gram stain of direct smears Acinetobacter appeared as tiny, Gram-negative coccobacillary
cells often appearing as diplococci.
(53) Histology reveals the typical granulation tissuelike appearance of the lesions (Figure 3, c), with scattered nuclear debris and aggregates of extracellular amphophilic granular bacterial deposits, which demonstrate a coccobacillary
morphology on a Warthin-Starry stain (Figure 3, d).
Identification of gram-positive coccal and coccobacillary
The bacteriological isolation yielded bipolar Gram negative coccobacillary
The isolates were gram negative coccobacillary
The presence of gram-positive coccobacillary
forms, mostly organized in pairs, was confirmed for primary isolates.