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Structural changes associated with poliovirus inactivation in soil.

J G Yeager, R T O'Brien

    Applied and Environmental Microbiology
    |October 1, 1979
    PubMed
    Summary

    Poliovirus loses infectivity in soil due to particle damage. Mechanisms differ in moist versus drying soils, affecting viral RNA and capsid integrity.

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    EFFECTS OF DEUTERIUM OXIDE AND RADIATION ON YEAST AND FISH. HW-76000.

    HW-SA [reports]. U.S. Atomic Energy Commission·2014

    Area of Science:

    • Environmental virology
    • Microbial ecology

    Background:

    • Poliovirus is a significant human pathogen.
    • Understanding poliovirus stability in soil is crucial for public health and environmental monitoring.

    Purpose of the Study:

    • To investigate the mechanisms of poliovirus inactivation in moist and dried soils.
    • To determine the specific damages to viral particles and their components.

    Main Methods:

    • Experiments were conducted in sterile moist and dried soil environments.
    • Analysis of poliovirus infectivity, genome integrity, and capsid structure was performed.

    Main Results:

    • Poliovirus infectivity loss in soil results from irreversible particle damage.
    • In moist soils, viral RNA degradation likely precedes capsid dissociation.
    • In dried soils, capsid components were unrecoverable, while RNA remained largely intact.

    Conclusions:

    • Polioviruses are inactivated by distinct mechanisms in moist and drying soils.
    • Environmental conditions significantly influence the stability and degradation pathways of poliovirus.

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