PMID- 1313531 OWN - NLM STAT- MEDLINE DCOM- 19920504 LR - 20041117 IS - 0391-5352 (Print) IS - 0391-5352 (Linking) VI - 15 IP - 1 DP - 1992 Jan TI - IgG antibodies to human herpesvirus-6 (HHV-6) in Italian people. PG - 57-63 AB - Sera from a sample of healthy Italian people were tested in an indirect immunofluorescence assay (IFA) for reactivity to a Human Herpesvirus-6 (HHV-6) strain called CV, isolated from a baby with exanthem subitum (Portolani et al., 1990). Seropositivity values of 83.78%, 92.68% and 63.64% were found in subjects aged 3 months-6 years, 6-18 years and over 18 years respectively. Sera from cordal blood, sera from subjects with evidence of active infection by Cytomegalovirus (CMV) or by Epstein-Barr virus (EBV), sera from seropositive adults to Human Immunodeficiency Virus type 1 (HIV) were also investigated for antibodies to the same HHV-6 strain. Values of antibody incidence and antibody content to HHV-6 in these groups of sera were generally higher than in the other groups. HHV-6 reinfections of both endogenous and exogenous origin and antibody cross-reactivity were considered among the reasons of this increase. HHV-6 seropositivity values in healthy Italian people and in people from different countries were also discussed in the light of the antigenic characteristics of the HHV-6 strains used and of the different test conditions. FAU - Cermelli, C AU - Cermelli C AD - Institute of Hygiene, University of Modena, Italy. FAU - Moroni, A AU - Moroni A FAU - Pietrosemoli, P AU - Pietrosemoli P FAU - Pecorari, M AU - Pecorari M FAU - Portolani, M AU - Portolani M LA - eng PT - Journal Article PL - Italy TA - Microbiologica JT - Microbiologica JID - 7902903 RN - 0 (Antibodies, Viral) RN - 0 (Immunoglobulin G) SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Antibodies, Viral/*blood MH - Child MH - Child, Preschool MH - Cross Reactions MH - Cytomegalovirus Infections/complications MH - Fetal Blood/immunology MH - Fluorescent Antibody Technique MH - HIV Infections/complications MH - Herpesviridae Infections/complications/*epidemiology MH - Herpesvirus 6, Human/*immunology MH - Humans MH - Immunoglobulin G/*blood MH - Incidence MH - Infant MH - Italy/epidemiology MH - Prevalence EDAT- 1992/01/01 00:00 MHDA- 1992/01/01 00:01 CRDT- 1992/01/01 00:00 PHST- 1992/01/01 00:00 [pubmed] PHST- 1992/01/01 00:01 [medline] PHST- 1992/01/01 00:00 [entrez] PST - ppublish SO - Microbiologica. 1992 Jan;15(1):57-63.