Nonpathogenic Neisseria
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Neisseria are gram-negative cocci-shaped bacteria. Of all species, only two are pathogenic to humans, N. meningitidis and N. gonorrhoeae.
Oral neisseria[edit | edit source]
- Gram-negative, non-sporulating aerobic bacteria;
- very little pathogenicity, such as pathogens in exceptional cases;
- common oral and pharyngeal flora;
- importance in the oral ecosystem (N. sicca, N. subflava, N. lactamica);
- pathogenicity outside the oral cavity;
- infections of endogenous origin;
- higher risk of pathogenicity in immunocompromised patients (endocarditis, meningitis).
Cultivation[edit | edit source]
- It is very easy to cultivate, blood agar is sufficient.
Biochemistry[edit | edit source]
- The most active of the whole family, by means of the difference in activity, they can be distinguished from other Neisseria.
Diagnostics[edit | edit source]
- Cultivation, possible confusion with beta-hemolytic streptococci (for differentiation oxidase test is used), NeisseriaTest;
- N. lactamica and N. cinerea - growth on soil for gonococci, beware of confusion!
Therapy[edit | edit source]
- As with other Neisseria, some strains produce beta-lactamase.
Links[edit | edit source]
Bibliography[edit | edit source]
- VOTAVA, Miroslav. Lékařská mikrobiologie speciální. 1. edition. Brno : Neptun, 2003. 495 pp. ISBN 80-902896-6-5.
