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Related Experiment Videos

Hepatitis B virus (HBV) in the elderly: an underestimated problem?

M Chiaramonte, A Floreani, R Naccarato

    Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
    |January 1, 1987
    PubMed
    Summary

    Hepatitis B (HBV) infection in older adults often presents subtly, leading to underdiagnosis. The elderly show poor vaccine response and may develop chronic carriage, highlighting unique challenges in aged populations.

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    Area of Science:

    • Gerontology
    • Infectious Diseases
    • Hepatology

    Background:

    • Hepatitis B virus (HBV) infection in the elderly presents unique clinical and serological challenges, often underestimated.
    • Closed communities, such as institutions for the aged, pose a higher risk for HBV transmission.
    • Individuals from high HBV prevalence areas or lower socioeconomic backgrounds may have pre-existing immunity, influencing susceptibility.

    Purpose of the Study:

    • To investigate the peculiar presentation and outcomes of Hepatitis B infection in elderly individuals.
    • To understand the risk factors and transmission dynamics of HBV in aged populations.
    • To explore the immunological response to HBV and vaccination in the elderly.

    Main Methods:

    • Review of clinical and serological data from elderly patients with Hepatitis B.

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  • Analysis of HBV transmission patterns in institutionalized elderly populations.
  • Assessment of immune responses, including antibody production to HBV and vaccine response, in the aged.

    • Main Results:

    • Elderly individuals often develop subclinical hepatitis, detected via serum analysis, and frequently become asymptomatic carriers of Hepatitis B surface antigen (HBsAg).
    • Poor antibody responses to hepatitis B vaccines are common in the aged, suggesting immune system alterations.
    • Overt acute hepatitis is infrequent and typically benign, while active chronic hepatitis is rare; cirrhosis is a common end-stage for previously acquired chronic hepatitis.

    Conclusions:

    • Hepatitis B infection in the elderly requires careful consideration due to atypical presentations and potential for chronic carriage.
    • Altered immune function in the aged contributes to poor vaccine efficacy and unique infection outcomes.
    • Early detection and management strategies are crucial for mitigating HBV complications in older adults.