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Related Experiment Videos

Junin virus infection of Callithrix jacchus: pathologic features.

P H González, R P Laguens, M J Frigerio

    The American Journal of Tropical Medicine and Hygiene
    |March 1, 1983
    PubMed
    Summary

    Infection with Junin virus caused severe illness in New World primates, mimicking human Argentine hemorrhagic fever. Lesions and high virus levels were observed, except for central nervous system damage.

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    Area of Science:

    • Virology
    • Pathology
    • Primate models

    Background:

    • Junin virus is the etiological agent of Argentine hemorrhagic fever (AHF).
    • New World primates serve as important models for studying viral hemorrhagic fevers.

    Purpose of the Study:

    • To investigate the pathogenesis of Junin virus infection in Callithrix jacchus.
    • To compare the induced disease with human Argentine hemorrhagic fever.

    Main Methods:

    • Infection of Callithrix jacchus with the prototype Junin virus strain.
    • Histopathological examination of tissues.
    • Immunohistochemical detection of viral antigens.
    • Quantification of virus concentration.

    Main Results:

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    • Junin virus infection induced severe disease characterized by multifocal hemorrhages.
    • Microscopic lesions included meningoencephalitis, interstitial pneumonia, lymphoid depletion, hepatocytic necrosis, and decreased bone marrow cellularity.
    • High virus concentrations correlated with lesion severity and viral antigen presence, except in the central nervous system.

    Conclusions:

    • Callithrix jacchus is a suitable model for studying Junin virus infection.
    • The induced pathology closely resembles human Argentine hemorrhagic fever, with notable differences in central nervous system involvement.