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Related to diplococci: Streptococcus pneumoniae


Plural of diplococcus.


[dip′lōkok′əs] pl, diplococci
Etymology: Gk, diploos, double, kokkos, berry
1 n, a member of the Coccaceae family that occurs in pairs because of incomplete cell division. Diplococci are often found as parasites or saprophytes.
2 adj, describing bacteria of the Coccaceae family, which occur as pairs of cocci. Examples include Streptococcus pneumoniae, Neisseria gonorrheae, and N. meningitidis.


(dip?lo-kok'us) plural.diplococci
Any of various spherical bacteria appearing in pairs.
See: bacterium for illus; Neisseria gonorrhoeae for illus
References in periodicals archive ?
Then the slide was examined under microscope (Olympus CH-20, Japan) using oil immersion lens for the presence of intra and extra cellular gram-negative diplococci.
In one case of acute bacterial meningitis, Gram staining showed gram-positive diplococci and the UF-100 bacterial count was high, whereas the culture remained negative after 7 days, probably because of antibiotic treatment before lumbar puncture.
Shape and arrangement of bacterial Isolates Single 10 Bunch of Cocci 8 Diplococci 5 Single-Red 18 Chain of Cocci 24 Bunch of Red 2 Note: Table made from pie chart.
Initial microscopic examination of cerebrospinal fluid revealed a gram-positive coccus; on review, intracellular diplococci were identified, suggesting an undercolored specimen that likely represented Neisseria species.
The growth of one oxidase-positive colony, with the appearance of Gram-negative diplococci was identified by a negative P-galactosidase test and the ability to oxidize glucose and maltose but not lactose and sucrose in cystine tryptic agar.
Cerebrospinal fluid cultures from 11 cases grew pneumococcus in 7 and diplococci in 4.
Indeed, gram-negative diplococci were found on the Gram stain.
A sputum Gram stain showed many white blood cells and gram-positive diplococci suggestive of Streptococcus pneumoniae.
Probable bacterial meningitis was defined as a suspected case for which gram-stained CSF was positive (gram-negative diplococci, gram-positive diplococci, or gram-negative bacilli); probable meningococcal meningitis cases are limited to those with gram-negative diplococci.
On December 4, gram-negative diplococci were identified in the patient's CSF at 9:30 a.
Gram- negative diplococci were identified in the material from the purpuric lesion and antibiotic therapy with ceftriaxone and vacomycin was continued.