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J Infect Dis. 2003 Jun 15;187(12):1944-50. Epub 2003 May 29.

Evidence for a recessive major gene predisposing to human herpesvirus 8 (HHV-8) infection in a population in which HHV-8 is endemic.

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1
Laboratoire de Génétique Humaine des Maladies Infectieuses, Université René Descartes-INSERM U 550, Faculté de Médecine Necker, Paris, France.

Abstract

Infection by human herpesvirus 8 (HHV-8), as measured by the presence of specific antibodies, was shown in countries in which HHV-8 infection is endemic to exhibit familial aggregation and a peculiar variation with age (rapid increase until puberty followed by a plateau in young adults). To investigate whether host genetic factors could explain these findings, a segregation analysis was performed of 81 families of African origin (1623 subjects; HHV-8 seroprevalence, 11.9%) living in a village in French Guiana in which HHV-8 infection is endemic. Results provide evidence for a recessive gene controlling susceptibility or resistance to HHV-8 infection. This gene is predicted to have a major effect during childhood, with almost all homozygous predisposed subjects ( approximately 6% of the population) being infected by age 15. For nonpredisposed subjects, HHV-8 infection in childhood strongly depends on virus exposure (through an HHV-8-infected mother), whereas the risk of infection appears to be low in young adults, with no evidence for heterosexual transmission.

PMID:
12792871
DOI:
10.1086/375345
[Indexed for MEDLINE]
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