meningococcus

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Related to Neisseria meningitidis: Neisseria gonorrhoeae

Meningococcus

A major human pathogen belonging to the bacterial genus Neisseria, and the cause of meningococcal meningitis and meningococcemia. The official designation is N. meningitidis. The meningococcus is a gram-negative, aerobic, nonmotile diplococcus. It is fastidious in its growth requirements and is very susceptible to adverse physical and chemical conditions.

Humans are the only known natural host of the meningococcus. Transmission occurs by droplets directly from person to person. Fomites and aerosols are probably unimportant in the spread of the organism. The most frequent form of host-parasite relationship is asymptomatic carriage in the nasopharynx.

The most common clinical syndrome caused by the meningococcus is meningitis, which is characterized by fever, headache, nausea, vomiting, and neck stiffness and has a fatality rate of 15% (higher in infants and adults over 60). Disturbance of the state of consciousness quickly occurs, leading to stupor and coma. Many cases also have a typical skin rash consisting of petechiae or purpura. See Meningitis

meningococcus

[mə¦niŋ·gə¦käk·əs]
(microbiology)
Common name for Neisseria meningitidis.
References in periodicals archive ?
Neisseria meningitidis contains a polysaccharide capsule, which protects meningococci against the host immune system and from serum bactericidal activity.
Rising incidence of invasive meningococcal disease caused by Neisseria meningitidis serogroup W in Victoria.
TRUMENBA (Meningococcal Group B Vaccine) is a vaccine indicated for individuals 10 through 25 years of age for active immunization to prevent invasive disease caused by Neisseria meningitidis group B.
Detection of bacterial DNA in cerebrospinal fluid by an assay for simultaneous detection of Neisseria meningitidis, Haemophilus influenzae, and streptococci using a seminested PCR strategy.
Neisseria meningitidis urethritis: a case report highlighting clinical similarities to and epidemiological differences from gonococcal urethritis.
The report reviews key players involved in the therapeutics development for Neisseria Meningitidis Infections and enlists all their major and minor projects
Changes in Neisseria meningitidis disease epidemiology in the United States, 1998-2007: implications for prevention of meningo coccal disease.
All cases the neisseria meningitidis involve foreigners coming into the
Para el estudio se incluyo la totalidad de aislados identificados por pruebas bioquimicas convencionales como Neisseria meningitidis, en el laboratorio de bacteriologia del Hospital Universitario "Antonio Patricio de Alcala" (HUAPA), ubicado en la ciudad de Cumana, estado Sucre, durante el periodo comprendido entre el 2 de enero de 2009 hasta el 31 de diciembre de 2010.
Quagliarello V Dissemination of Neisseria meningitidis.
The new data suggest that the investigational Hib-MenCY-TT vaccine holds potential to protect infants in the first year of life against invasive disease caused by three strains of bacteria: Neisseria meningitidis serogroups C (MenC) and Y (MenY) and Haemophilus influenzae type b (Hib).
Meningococcal disease is an acute infectious illness caused by the germ Neisseria meningitidis.