PMID- 8021757 OWN - NLM STAT- MEDLINE DCOM- 19940729 LR - 20220409 IS - 0022-3476 (Print) IS - 0022-3476 (Linking) VI - 125 IP - 1 DP - 1994 Jul TI - Human herpesvirus 7: another causal agent for roseola (exanthem subitum). PG - 1-5 AB - Human herpesvirus 7 (HHV-7) was isolated from peripheral blood mononuclear cells of two infants with typical exanthem subitum. The HindIII-, BamHI-, and EcoRI-digested DNA patterns of the isolated viruses were very similar to that of the prototype HHV-7 (RK strain), but different from that of human herpesvirus 6 (HHV-6). During the convalescent period of the first patient, the titer of antibody to HHV-7 rose from < 1:10 to 1:320 by an immunofluorescence antibody test, whereas the titer of antibody to HHV-6 remained < 1:10. In the second patient, who had two independent episodes of exanthem subitum during 2 months, both HHV-6 and HHV-7 were sequentially isolated; seroconversion to HHV-6 occurred during the first episode and to HHV-7 during the second episode. In addition, sera from another 15 children who had episodes of exanthem subitum were serologically tested for antibodies to HHV-6 and HHV-7 by immunofluorescence antibody test. Five of seven patients had seroconversion to HHV-7 just after having typical signs and symptoms of exanthem subitum. These results suggest that HHV-7 is one of the causative agents of exanthem subitum. FAU - Tanaka, K AU - Tanaka K AD - Department of Pediatrics, Osaka University Medical School, Japan. FAU - Kondo, T AU - Kondo T FAU - Torigoe, S AU - Torigoe S FAU - Okada, S AU - Okada S FAU - Mukai, T AU - Mukai T FAU - Yamanishi, K AU - Yamanishi K LA - eng PT - Journal Article PL - United States TA - J Pediatr JT - The Journal of pediatrics JID - 0375410 SB - IM MH - Child, Preschool MH - Exanthema Subitum/*microbiology MH - Female MH - *Herpesviridae Infections/microbiology MH - Herpesvirus 6, Human/classification/isolation & purification MH - Herpesvirus 7, Human/classification/*isolation & purification MH - Humans MH - Infant MH - Male MH - Serotyping EDAT- 1994/07/01 00:00 MHDA- 1994/07/01 00:01 CRDT- 1994/07/01 00:00 PHST- 1994/07/01 00:00 [pubmed] PHST- 1994/07/01 00:01 [medline] PHST- 1994/07/01 00:00 [entrez] AID - S0022-3476(94)70113-X [pii] AID - 10.1016/s0022-3476(94)70113-x [doi] PST - ppublish SO - J Pediatr. 1994 Jul;125(1):1-5. doi: 10.1016/s0022-3476(94)70113-x.