Overall, the Vitek MS[TM] definitely outperformed the Remel RapID[TM] NH for the identification of the Gram-negative diplococci
75%) cases, and microscopy revealed gram-negative diplococci
in 45 (56.
In another sample, which was negative by culture but Gram staining showed Gram-positive diplococci
, final identification of S.
For example, the presence of Gram-negative diplococci
in a joint aspirate should alert the clinician to the possibility of gonococcal arthritis, and therapy should be adjusted to cover for that pathogen.
The specimen is plated and initial Gram-stain results show something like Gram-negative diplococci
or very tiny Gram-negative coccobacilli.
Culture smears of small white circular colonies revealed cocci, diplococci
and rod shaped bacteria, while rod-shaped bacteria dominated the orange, peach, yellow or beige colonies.
Gram stains were considered positive if they demonstrated more than 10 white blood cells per high-power field or if clue cells, Gram-negative intracellular/extracellular diplococci
, or T.
Streptococcus pneumoniae is a gram positive diplococci
with a polysaccharide capsule that helps protect it from host defense mechanisms: 90 capsular serotypes have been identified.
Instead of growing the gram-negative diplococci
typical of Neisseria, however, the cultures showed the gram-negative rods of S.
One specimen, obtained by lumbar puncture from a 1-year-old infant with acute bacterial meningitis, showed gram-positive diplococci
, and the UF-100 counted 2352 bacteria/[micro]L, but the culture remained negative after 7 days.
Gram positive diplococci
were seen on Gram stain of the pleural fluid.
In rod shape isolates, single rod-18, cluster of rod-2, while in cocci shape isolate, single cocci-10, diplococci
-5, bunch of cocci-8 and chain of cocci-24 isolates.
The presence of intracellular gram-negative diplococci
within the polymorphonuclear leucocytes was presumptively diagnosed as Neisseria gonorrhoeae.
urethral gram-negative intracellular diplococci
, growth of oxidase-positive bacterial colonies on modified Thayer-Martin media, and negative urine NAAT for Ng).
It should be also noted that diplococci
were identified in higher proportion in vaginal smears of animals of the experimental group as compared to the control one -9.