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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 ?
Microscopic examination of cerebrospinal fluid showed gram-negative diplococci and culture documented N.
Gram stain of colony smears showed gram-negative diplococci and the API NH system (bioMdrieux, Marcy l'Etoile, France) classified the bacterium as Neisseria gonorrhoeae (with a score of 87%).
Three of the 5 first samples were found to show gram-negative diplococci on staining, the next 2 were negative on Pastorex rapid latex agglutination test (Bio-Rad Laboratories, Hercules, CA, USA) (during the outbreak investigation), and a subsequent 13 were sent to the African Medical and Research Foundation (AMREF) laboratory in Nairobi, Kenya, for culture and susceptibility testing.
Colonies resembling meningococci were identified by conventional tests, and oxidase-positive, gram-negative diplococci were frozen and stored in duplicate as putative meningococci at -70[degrees]C.
meningitidis isolated from blood or cerebrospinal fluid (CSF); meningococcal antigen or DNA detected in cerebrospinal fluid by latex agglutination or polymerase chain reaction; or gram-negative diplococci detected in cerebrospinal fluid, blood, or skin biopsy.
The next morning a chest x-ray shows infiltration in the right lower lung field, and the sputum culture shows gram-positive diplococci.
Gram staining of blood-free supernatants from all positive cultures was interpreted as showing a homogeneous smear of gram-positive diplococci and was used as the inoculum of Sceptor gram-positive Breakpoint/ID panels (Becton Dickinson, Franklin Lakes, NJ).