title: Haemagglutination-inhibiting antibodies to B.K. virus in Hungary.
abstract: Antibody inhibiting the haemagglutination by B.K. virus was found in 64% of the serum samples collected from 949 subjects in Hungary. The frequency of seropositivity was the lowest (17%) among infants 1 and 2 years of age and the highest (93%) in the age group 16 to 20 years. The subsequent age groups showed a slow continuous decline. The age-distribution curve drawn on the basis of the geometric means of titres has two peaks, one between 3 and 5 years of age and another between 21 and 30 years of age, reaching 6.74 and 7.05, respectively, as expressed in terms of log2 units. The prevalence of haemagglutination-inhibiting antibody to B.K. virus in Hungary and its distribution by age are similar to those reported from other European countries.
mesh_terms: D000293:Adolescent; D000328:Adult; D000375:Aging; D000914:Antibodies, Viral / Q000032:analysis*; D001739:BK Virus / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D006814:Hungary; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011120:Polyomavirus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral