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Related Experiment Videos

Australia antigen: detection and transmission in shellfish.

P Mahoney, G Fleischner, I Millman

    Science (New York, N.Y.)
    |January 11, 1974
    PubMed
    Summary

    Australia antigen, a marker for hepatitis B virus, was detected in clams exposed to untreated sewage. This virus can be ingested and transmitted between clams, highlighting potential public health risks from contaminated seafood.

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    Area of Science:

    • Environmental microbiology
    • Hepatitis B virus research
    • Seafood safety

    Background:

    • Australia antigen, a marker for hepatitis B virus (HBV), has been detected in marine environments.
    • Coastal sewage discharge poses a potential risk for the contamination of edible shellfish.

    Purpose of the Study:

    • To investigate the presence and transmission of Australia antigen in clams exposed to hospital sewage.
    • To assess the survival and potential for replication of Australia antigen in clams under different aquarium conditions.

    Main Methods:

    • Detection of Australia antigen in clams collected from a coastal area receiving untreated hospital sewage.
    • Controlled experiments in closed-system aquariums to observe antigen ingestion and transmission.
    • Monitoring of Australia antigen levels in open-system aquariums over time.

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    Main Results:

    • Australia antigen was identified in clams contaminated by untreated sewage from a coastal hospital.
    • Clams ingested and subsequently transmitted Australia antigen to uninfected individuals in closed-system aquariums.
    • In open-system aquariums, Australia antigen titers decreased over time, indicating concentration rather than viral replication.

    Conclusions:

    • Clams can accumulate and transmit Australia antigen from contaminated sewage, posing a potential public health concern.
    • The findings suggest that environmental conditions influence the fate of Australia antigen in shellfish.
    • Further research is warranted to understand the full implications of viral contamination in edible shellfish.