PMID- 10341172 OWN - NLM STAT- MEDLINE DCOM- 19990729 LR - 20220128 IS - 1080-6040 (Print) IS - 1080-6059 (Electronic) IS - 1080-6040 (Linking) VI - 5 IP - 3 DP - 1999 May-Jun TI - Human herpesvirus 6: An emerging pathogen. PG - 353-66 AB - Infections with human herpesvirus 6 (HHV-6), a beta-herpesvirus of which two variant groups (A and B) are recognized, is very common, approaching 100% in seroprevalence. Primary infection with HHV-6B causes roseola infantum or exanthem subitum, a common childhood disease that resolves spontaneously. After primary infection, the virus replicates in the salivary glands and is shed in saliva, the recognized route of transmission for variant B strains; it remains latent in lymphocytes and monocytes and persists at low levels in cells and tissues. Not usually associated with disease in the immunocompetent, HHV-6 infection is a major cause of opportunistic viral infections in the immunosuppressed, typically AIDS patients and transplant recipients, in whom HHV-6 infection/reactivation may culminate in rejection of transplanted organs and death. Other opportunistic viruses, human cytomegalovirus and HHV-7, also infect or reactivate in persons at risk. Another disease whose pathogenesis may be correlated with HHV-6 is multiple sclerosis. Data in favor of and against the correlation are discussed. FAU - Campadelli-Fiume, G AU - Campadelli-Fiume G AD - University of Bologna, Italy. campadel@kaiser.alma.unibo.it FAU - Mirandola, P AU - Mirandola P FAU - Menotti, L AU - Menotti L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - United States TA - Emerg Infect Dis JT - Emerging infectious diseases JID - 9508155 SB - IM MH - Adult MH - Central Nervous System Diseases/virology MH - Child MH - Exanthema Subitum/epidemiology/physiopathology MH - Genome, Viral MH - *Herpesviridae Infections/epidemiology/physiopathology/virology MH - *Herpesvirus 6, Human/genetics/pathogenicity MH - Herpesvirus 7, Human MH - Humans MH - Multiple Sclerosis/virology MH - Opportunistic Infections/virology MH - Sarcoma, Kaposi/virology PMC - PMC2640789 EDAT- 1999/05/26 00:00 MHDA- 1999/05/26 00:01 PMCR- 1999/05/01 CRDT- 1999/05/26 00:00 PHST- 1999/05/26 00:00 [pubmed] PHST- 1999/05/26 00:01 [medline] PHST- 1999/05/26 00:00 [entrez] PHST- 1999/05/01 00:00 [pmc-release] AID - 10.3201/eid0503.990306 [doi] PST - ppublish SO - Emerg Infect Dis. 1999 May-Jun;5(3):353-66. doi: 10.3201/eid0503.990306.