molecular phylogenetic analyses indicate a wide and ancient radiation of african hepatitis delta virus, suggesting a deltavirus genus of at least seven major clades. | hepatitis d virus (hdv) is a satellite of hepatitis b virus (hbv) for transmission and propagation and infects nearly 20 million people worldwide. the hdv genome is a compact circular single-stranded rna genome with extensive intramolecular complementarity. despite its different epidemiological and pathological patterns, the variability and geographical distribution of hdv are limited to three genotypes and two subtypes that have been characterized to date. phylogenetic reconstructions based on ... | 2004 | 14963156 |
eighth major clade for hepatitis delta virus. | hepatitis delta virus is the only representative of the deltavirus genus, which consists of 7 differentiated major clades. in this study, an eighth clade was identified from 3 distinct strains. deltavirus genetic variability should be considered for diagnostic purposes. clinical consequences of the diversity have yet to be evaluated. | 2006 | 17073101 |
liver transplantation of a hellp syndrome donor liver in acute fulminant hepatitis b with deltavirus coinfection. | | 2006 | 17081235 |
viral infections in pregnancy. | viral infections are a common complication of pregnancy and in some cases, can have profound effects for the unborn fetus. the human herpesvirus family is composed of large, enveloped dna viruses that have close structural similarity. the family includes the herpes simplex viruses types 1 and 2, varicella zoster virus, epstein barr virus, cytomegalovirus (cmv), and human herpes viruses types 6, 7 and 8. these viruses all share the ability to establish latency and reactivate at a later time. stru ... | 2007 | 17505458 |
hepatitis d: thirty years after. | the key to the discovery of the hepatitis d virus (hdv) was the description in turin, italy in the mid-1970s of the delta antigen and antibody in carriers of the hepatitis b surface antigen. the new antigen was first thought to be a marker of the hepatitis b virus (hbv) and in view of its intricate true nature, it would have possibly died away as another odd antigenic subtype of hbv, like many that were described in the 1970s. fortunately, instead, a collaboration started in 1978 between the tur ... | 2009 | 19285743 |