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[The phenotypic heterogeneity of meningococcal strains by their serogroup trait]

E M Babich

    Mikrobiolohichnyi Zhurnal (Kiev, Ukraine : 1993)
    |January 1, 1996
    PubMed

    Insights

    Meningococcal heterogeneity arises from nonagglutinable variants and cross-reacting microcommunities. Serologically inactive strains can form variants with varying agglutinable colony percentages, impacting meningitis pathogen identification.

    Area of Science:

    • Microbiology
    • Immunology
    • Bacteriology

    Background:

    • Neisseria meningitidis (meningococci) exhibit significant heterogeneity.
    • Understanding this heterogeneity is crucial for accurate identification and epidemiological tracking of meningitis pathogens.

    Purpose of the Study:

    • To investigate the sources of heterogeneity in meningococcal subpopulations and polyagglutinable strains.
    • To characterize serologically inactive strains and their variants.

    Main Methods:

    • Analysis of meningococcal subpopulations for nonagglutinable individuals.
    • Characterization of polyagglutinable strains, including cross-reacting cells and microcommunities.
    • Assessment of serologically inactive strains and their agglutinable colony variants.

    Main Results:

    • Heterogeneity in meningococci is attributed to nonagglutinable individuals within subpopulations.
    • Polyagglutinable strains incorporate cross-reacting cells and distinct microcommunities.
    • Serologically inactive strains can be homogeneous or yield variants with 20-44% agglutinable colonies.
    • Meningococcal strains contain microcommunities mirroring serogroup properties of pathogen subpopulations.

    Conclusions:

    • The study elucidates key mechanisms driving meningococcal heterogeneity.
    • Findings contribute to a better understanding of meningococcal diversity and its implications for disease control.
    • Characterization of serologically inactive variants aids in refining diagnostic and typing methods.

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