LOW-PREVALENCE OF CIRCULATING ANTI-TYPE-6 HUMAN HERPES-VIRUS IGG-ANTIBODIES IN SPANISH CHILDREN

The prevalence of circulating anti-HHV-6 IgG-antibodies in an infant p opulation, was investigated to assess the evolution of antibody titres from birth to adulthood. End-point titration was done by indirect imm unofluorescence, in 525 samples of serum from children, healthy adults and pregnant women. In the children, seropositivity increased from th e age of 6 months, and was highest (56.52%) between 7 months and 7 yea r, suggesting that the initial infection occurred between 6 and 12 mon ths of age.