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Neisseria elongata

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A gram-negative nonmotile aerobic and oxidase positive rod shaped bacterium involved in osteomyelitis and endocarditis in human.


Neisseria elongata is normally found as an oral bacterial flora of human pharynx and throat but some of its subspecies has been discovered to be pathogenic as transitory colonizers of upper respiratory tract and urogenital tract in human in which others involved in the enzyme decomposition of toxic hydrogen peroxide to water and oxygen. It also grows with an optimal temperature at about 35’C.

Neisseria elongata is extremely aerobic in which it needed oxygen to oxidize substrates in order to obtain energy.

Neisseria elongata is implicated in human systemic diseases particularly endocarditis, septicemia and osteomyelitis.

Scientific classification:

 Kingdom: Bacteria
 Phylum: Proteobacteria
 Class: Betaproteobacteria
 Order: Neisseriales
 Family: Neisseriaceae
 Genus: Neisseria
 Species: Neisseria elongata

See also:

• Bacteria

• Endocarditis

• Osteomyelitis