Abstract Human herpesvirus 7, reported in 1990 is a lymphotropic member of the betaherpesvirus subfamily of herpesviruses. The virus is highly seroprevalent, primary infection usually occurs during childhood, and it has been associated with cases of exanthem subitum, pityriasis rosea, neurological ...
(JI) was isolated from a patient withchronic fatigue syndrome.278The ultrastructural appearance of the virus is characteristic of a typical humanherpesviruswith a very prominenttegumentsimilar to that of HHV-6. The HHV-7 genome contains 145 kbp withsequence homologyto other betaherpesviruses HHV-6...
Active infection with CMV was detected in 28/60 (47%), HHV-6 in 19/60 (32%), and HHV-7 in 29/60 (48%) of patients. The PCR-positive samples were tested by quantitative-competitive PCR to measure the virus load of each betaherpesvirus. The median peak virus load for CMV was ...
Human herpesvirus 7 (HHV-7), which belongs to the betaherpesvirus subfamily and infects mainly CD4+ T cells in vitro, infects children during infancy. HHV-7 contains two genes, U12 and U51, that encode putative homologs of cellular G-protein-coupled receptors. To analyze the biological func...
In the absence of the R2 gene, we propose that the R1 ORF has evolved a distinct, as yet unidentified, function not only in human herpesvirus-7 but also in other human betaherpes-viruses. 展开 关键词: Herpes simplex virus polymerase chain reaction HSV keratitis HSV retinitis HSV encephalitl...
HHV-7 is a beta herpesvirus (Roizman, 1996) and is ubiquitous (Ablashi et al., 1995, Frenkel and Roffman, 1996, Levy, 1997). Various reports indicate that probably >85% of the population are infected (Black and Pellet, 1993, Clark et al., 1993, Yoshikawa et al., 1993, Ablashi ...
Betaherpesviridae(cytomegalovirus, human herpesvirus type 6, and human herpesvirus type 7) replicate in a limited number of cellular systems and grow slowly in cell culture. These viruses cause little cell lysis and can establish latent infections in secretory glands, the lymphoreticular system, the ...
Betaherpesviruses have a restricted host range and grow slowly in tissue culture. Infection typically causes cells to enlarge, which is termed cytomegalia. These members can establish latency inhematopoietic progenitor cellsand can cause persistent infections of epithelial and glandular cells. This group...
Provides information on a study which investigated the replication of cytomegalovirus (CMV), human herpesvirus (HHV)-6 and HHV-7 in liver transplant recipients. Association of the beta-herpesviruses with CMV disease and their response to antiviral therapy; Materials and methods used; Results of the...
Human herpesvirus (HHV)-6 is a beta-herpesvirus-like human cytomegalovirus (HCMV) with the potential to reactivate in immunocompromised persons. HHV-6 and HCMV were assessed in the peripheral blood leukocytes of 26 lung transplant recipients and of 37 human immunodeficiency virus (HIV)-infected pa...