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Updated: Jul 12, 2026
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Published on: November 8, 2011
Changes in Epstein-Barr virus antibody titers associated with aging
Summary
Elderly individuals show increased Epstein-Barr virus (EBV) antibody levels, suggesting a weakened immune response to latent EBV infection in aging populations. This indicates a potential loss of immune control over the virus.
Area of Science:
- Immunology
- Virology
- Gerontology
Background:
- Aging is associated with a decline in cellular immunity.
- Epstein-Barr virus (EBV) establishes a lifelong latent infection.
- The impact of aging on latent EBV control is not fully understood.
Purpose of the Study:
- To investigate if age-related immune decline affects the expression of latent Epstein-Barr virus (EBV).
- To compare EBV antibody titers in geriatric subjects versus a young adult control group.
Main Methods:
- Antibody titers to EBV early antigen (EA) IgG, and virus capsid antigen (VCA) IgG and IgA were measured.
- Assays were performed on plasma from 44 geriatric subjects and a control group of young adults.
Main Results:
- Geriatric subjects had higher positivity rates for EBV EA IgG (89%) and VCA IgG (100%) compared to controls.
- A significantly higher percentage of geriatric subjects (36%) tested positive for VCA IgA compared to controls (7%).
- Geometric mean titers (GMT) for EBV EA and VCA antibodies were significantly higher in the geriatric group.
Conclusions:
- Data suggest a potential loss of cellular immune control over latent EBV in geriatric individuals.
- Aging may impair the immune system's ability to manage persistent EBV infections.
- Further research is needed to elucidate the mechanisms of EBV reactivation in the elderly.
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