Neisseria meningitidis (meningococcus) and Neisseria · gonorrhoeae ( gonococcus), the well known agents of epidemic meningitis and gonorrhoea, respectively

2014-03-02 · The genus includes: Many commensals Two important human pathogens: 1. Neisseria gonorrhoeae (gonococci) 2. Neisseria meningitidis ( meningococci) 4. . Morphology . Culture characters: - Enriched media: Chocolate agar - Selective media: Modified Thayer Martin (Chocolate agar + antibiotics) . 5-10% CO2 5.

People with meningococcal disease spread the bacteria to others through close personal contact such as living together or kissing. A person with meningococcal disease needs immediate medical attention. Neisseria meningitidis (Nm) pharyngeal carriage is a necessary condition for invasive disease. We present the first carriage study in children in Buenos Aires, Argentina, considering 2017 as a transition year.

N. meningitidis is a major cause of cerebrospinal meningitis. 3: Vaccine Development: No: Serogroup A, B, C, Y and W-135 meningococcal infections can be prevented by Neisseria meningitidis(the meningococcus) causes significant morbidity and mortality in children and young adults worldwide through epidemic or sporadic meningitis and/or septicemia. Neisseria meningitidis is a Gram-negative, either an encapsulated or unencapsulated, aerobic diplococcus with a “kidney” or “coffee-bean” shape. N. meningitidis may occur intracellularly or extracellularly in 2PMN leukocytes N. meningitidis is a fastidious bacterium, dying within hours on inanimate surfaces. 1 N. – Neisseria Neisseria meningitidis C114 contains silent, truncated pilin genes that are homologous to Neisseria gonorrhoeae pil sequences.

Bordetella pertussis.

2014-03-02

gonorrhoeae and N. meningitidis). MATERIAL SAFETY DATA SHEET - INFECTIOUS SUBSTANCES.

Neisseria Meningitidis is non motile and is transferred among people via direct contact with bodily fluids in which the bacteria has inhabited. This bacteria has also been found to be oxidase positive which means it contains the enzyme cytochrome c oxidase and is capable of using oxygen for energy via an electron transfer chain.

Disease and carrier isolates of Neisseria meningitidis were examined for their ability to adhere to human buccal epithelial cells and human cell lines and to hemagglutinate human erythrocytes, properties thought to be associated with the presence of pili. Colony morphology of piliated Neisseria meningitidis. Blake MS(1), MacDonald CM, Klugman KP. Author information: (1)Laboratory of Bacteriology and Immunology, Rockefeller University, New York, New York 10021.

N.meningit … Pathogenic Neisseria meningitidis isolates contain a polysaccharide capsule that is the main virulence determinant for this bacterium. Thirteen capsular polysaccharides have been described, and nuclear magnetic resonance spectroscopy has enabled determination of the structure of capsular polysaccharides responsible for serogroup specificity. Abstract.
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The best results are obtained with day-old cultures.

N. meningitidis is a part of the normal nonpathogenic flora in the nasopharynx of up to 8–25% of adults.
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N. meningitidis are gram-negative, coffee-bean shaped diplococci that may occur intracellularly or extracellularly in PMN leukocytes. N. meningitidis is a fastidious

Older cultures (> 24 hours) become more opaquely grey and sometimes cause the underlying agar to turn dark. Neisseria meningitidis (the meningococcus) causes significant morbidity and mortality in children and young adults worldwide through epidemic or sporadic meningitis and/or septicemia. In this review, we describe the biology, microbiology, and epidemiology of this exclusive human pathogen. N.meningit … Pathogenic Neisseria meningitidis isolates contain a polysaccharide capsule that is the main virulence determinant for this bacterium. Thirteen capsular polysaccharides have been described, and nuclear magnetic resonance spectroscopy has enabled determination of the structure of capsular polysaccharides responsible for serogroup specificity. Abstract. Disease and carrier isolates of Neisseria meningitidis were examined for their ability to adhere to human buccal epithelial cells and human cell lines and to hemagglutinate human erythrocytes, properties thought to be associated with the presence of pili.