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Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
06:02

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors

Published on: September 13, 2018

Studies on the psittacosis-lymphogranuloma group. II. A non-infectious phase in virus development following

A J GIRARDI, E G ALLEN, M M SIGEL

    The Journal of Experimental Medicine
    |September 1, 1952
    PubMed

    Insights

    Meningopneumonitis virus growth in tissue culture mirrors in ovo development. Prolonged virus adsorption and a shift to a non-infectious form characterize early viral replication stages.

    Area of Science:

    • Virology
    • Cell Biology
    • Microbiology

    Background:

    • Meningopneumonitis virus exhibits growth patterns in vitro similar to in ovo development.
    • Understanding early viral development stages is crucial for comprehending viral replication cycles.

    Purpose of the Study:

    • To investigate the initial stages of meningopneumonitis virus development, specifically adsorption and latent periods, using tissue culture.
    • To elucidate the mechanisms behind the initial increase in infectivity and subsequent reduction in virus titer.

    Main Methods:

    • Utilized tissue culture procedures to study meningopneumonitis virus growth.
    • Inoculated allantoic membrane suspensions in ovo with meningopneumonitis virus.
    • Monitored virus infectivity and titer changes over time.

    Main Results:

    • The initial rise in infectivity in allantoic membrane suspensions was attributed to prolonged virus adsorption, not immediate reproduction.
    • The adsorption period's duration was influenced by virus dilution.
    • A decrease in virus titer post-adsorption resulted from infectious virus converting to a non-infectious form, likely part of the normal viral cycle.

    Conclusions:

    • Prolonged adsorption and the development of a non-infectious viral form are key early events in meningopneumonitis virus replication.
    • Factors influencing these early stages warrant further investigation for a comprehensive understanding of viral pathogenesis.
    Keywords:
    MIYAGAWANELLAVIRUSES

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