title: [Human herpesviruses 6 and 7. Basic principles and possible significance for dermatology].
abstract: Primary infection with human herpesviruses 6 and 7 (HHV-6 and HHV-7) during early childhood causes permanent latent infection, usually without any ill effects; only a small percentage of primary infections will lead to exanthem subitum. Like other herpesviruses. HHV-6 and HHV-7 can be reactivated at any time if host defence mechanisms become defective (e.g. in transplant recipients, AIDS, tumour patients). HHV-6 can be reactivated under such conditions and cause a variety of clinical problems, such as exanthems along with interstitial pneumonia or hepatitis for example. In addition, the reactivated virus may influence the course of autoimmune and proliferative diseases such as systemic lupus erythematosus and Hodgkin's disease. While, HHV-7 may be associated with similar disorder, more systematic studies are needed to clarify the clinical implications and the pathogeetic mechanisms of both viruses.
authors.affiliation: Universitäts-Hautklinik, Universität, Köln.
authors.forename: J A
authors.initials: JA
authors.lastname: Lasch
authors.forename: J P
authors.initials: JP
authors.lastname: Klussmann
authors.forename: G R
authors.initials: GR
authors.lastname: Krueger
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology; D000328:Adult; D001327:Autoimmune Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology; D001782:Blood Donors / Q000706:statistics & numerical data; D002648:Child; D002675:Child, Preschool; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D005077:Exanthema Subitum / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology*; D005260:Female; D005858:Germany / Q000453:epidemiology; D006566:Herpesviridae Infections / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology*; D015654:Herpesvirus 6, Human / Q000472:pathogenicity; D016199:Herpesvirus 7, Human / Q000472:pathogenicity; D006689:Hodgkin Disease / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology; D006801:Humans; D015994:Incidence; D007223:Infant; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology; D008297:Male; D009894:Opportunistic Infections / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology; D014019:Tissue Donors / Q000706:statistics & numerical data; D014775:Virus Activation / Q000502:physiology
vernacular_title: Die humanen Herpesviren 6 und 7. Grundlagen und mögliche Bedeutung für die Dermatologie.