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Geographic/ethnic differences in human herpesvirus-6 antibody patterns
P H Levine1, J Neequaye, M Yadav
1National Cancer Institute, Bethesda, MD 20892.
Microbiology and Immunology
|January 1, 1992
Summary
Antibodies to human herpesvirus-6 (HHV-6) were significantly more prevalent in healthy Ghanaians compared to Malaysian Chinese. Other ethnic groups showed intermediate antibody levels, with no noted disease differences.
Area of Science:
- Virology
- Immunology
- Epidemiology
Background:
- Human herpesvirus-6 (HHV-6) is a common virus with a widespread distribution.
- Geographic and ethnic variations in viral antibody prevalence are observed for many pathogens.
Purpose of the Study:
- To investigate the prevalence and antibody titers of human herpesvirus-6 (HHV-6) in healthy adults across different geographic and ethnic groups.
- To explore potential correlations between geographic/ethnic background and HHV-6 immune response.
Main Methods:
- Serum samples were collected from healthy adults representing four distinct groups: Ghanaian Blacks, Malaysian Chinese, Malaysian Indians, and United States Caucasians.
- Antibodies to HHV-6 were quantified in these samples using a standardized testing protocol.
Main Results:
- A significantly higher prevalence and titer of HHV-6 antibodies were found in the Ghanaian Black population compared to Malaysian Chinese.
- Malaysian Indian and United States Caucasian groups exhibited intermediate levels of HHV-6 antibody prevalence and titer.
- No specific differences in HHV-6-associated diseases have been identified to date across these groups despite the observed variations in antibody patterns.
Conclusions:
- Significant geographic and ethnic variations exist in the prevalence and antibody titers of human herpesvirus-6 (HHV-6) in healthy adult populations.
- These variations in immune response to HHV-6 do not currently correlate with observed differences in HHV-6-associated diseases.