meningococcus


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Related to meningococcus: pneumococcus, gonococcus, meningococcal vaccine, Neisseria meningitidis

meningococcus

 [mĕ-ning″go-kok´us]
a microorganism of the species Neisseria meningitidis, the cause of some types of meningitis. adj., adj meningococ´cal.

Neis·se·ri·a me·nin·gi·'ti·dis

a bacterial species found in the nasopharynx of humans but not in other animals; the causative agent of meningococcal meningitis and meningicoccemia; virulent organisms are strongly gram negative and occur singly or in pairs; in the latter case the cocci are elongated and are arranged with long axes parallel and facing sides kidney shaped; groups characterized by serologically specific capsular polysaccharides are designated by capital letters (the main serogroups being A, B, C, and D).

meningococcus

/me·nin·go·coc·cus/ (mĕ-ning″go-kok´us) pl. meningococ´ci   an individual organism of Neisseria meningitidis. meningococ´calmeningococ´cic

meningococcus

(mə-nĭng′gə-kŏk′əs, -nĭn′jə-)
n. pl. meningo·cocci (-kŏk′sī, -kī)
A bacterium (Neisseria meningitidis) that causes cerebrospinal meningitis.

me·nin′go·coc′cal (-kŏk′əl), me·nin′go·coc′cic (-kŏk′sĭk) adj.

meningococcus

[mining′gōkok′əs] pl. meningococci [-kok'sī]
Etymology: Gk, meninx + kokkos, berry
a bacterium of the genus Neisseria meningitidis, a nonmotile gram-negative diplococcus, frequently found in the nasopharynx of asymptomatic carriers, that may cause septicemia or epidemic cerebrospinal meningitis. Meningococcal infections are not highly communicable. However, crowded conditions, such as may be found in army camps and college dormitories, concentrate the number of carriers and reduce individual resistance to the organism. Hemorrhagic skin lesions are significant clues to the diagnosis. Stained smears of these lesions or of cerebrospinal fluid must be examined quickly because meningococci are fragile and lyse readily. Early treatment with an appropriate antibiotic such as penicillin G is essential for cure. Contacts may receive prophylaxis with rifampin. Several meningococcal vaccines are available. See also meningitis. meningococcal, adj.

Neis·se·ri·a me·nin·gi·ti·dis

(nī-sēr'ē-ă men-in-jit'i-dis)
A species found in the nasopharynx; the causative agent of meningococcal meningitis. Virulent organisms are strongly gram-negative and occur singly or in pairs; in the latter case the cocci are elongated and are arranged with long axes parallel and facing sides kidney shaped. Groups characterized by serologically specific capsular polysaccharides are designated by capital letters (the main serogroups being A, B, C, and D).
Synonym(s): meningococcus.
References in periodicals archive ?
Explain that even in cases where a child has had a confirmed case of IMD due to a particular strain of Meningococcus they must still have all the vaccines as per the existing immunisation schedule to protect against the multiple other strains capable of causing further illness in the child.
We are confident that their experienced management team will be able to generate significant sales in Asia and Latin America from our proven vaccines against typhoid, meningococcus and leptospirosis, three major healthcare problems in these regions.
Smokers carry more germs like meningococcus, so normal family cuddles and kisses can pass on dangerous germs, even if smokers only smoke outside," he added.
The polysaccharide capsule of these three encapsulated bacteria allows for their characterisation into serogroups or serotypes: more than 90 serotypes for the pneumococcus, 13 serogroups for the meningococcus (A, B, C, D, X, Y, Z, E, W-135, H, I, K and L) and 6 serotypes for H.
The company's portfolio of products includes vaccines for influenza, meningococcus C, rabies, tick-borne encephalitis, Haemophilus influenzae B (Hib), polio, mumps, measles and rubella (MMR) and diphtheria, tetanus and pertussis (whooping cough).
They have strong antiseptic properties and are known to kill many types of bacteria such as Staphylococcus aureus, Pheumococcus, and meningococcus.
l There are several strains of meningitis and the most common form in the UK is bacterial meningococcus Group B.
The current FDA-licensed meningococcal disease vaccine, Menomune-A/C/Y/W-135 (Meningococcal Polysaccharide Vaccine, Groups A, C, Y and W-135 Combined), is made from a long chain of polysaccharides that come from the outer coat of the meningococcus bacterium, providing a limited duration of immunity.
Dr Mark Walker,of the National Public Health Service for Wales, said: ``Both children have the B strain of meningococcus and attend the same school - but are not in the same class or have the same group of friends.
Jean Aikman, 55, was struck down by septicaemia, thought to have been caused by the meningococcus germ, which can lead to meningitis.
The Surrey University team genetically engineered a mutant meningococcus germ incapable of causing disease in mice.
The vaccine does not treat all strains of meningococcus, lasts only three years and those immunized can still be carriers, she said.