| tt virus infection in screened taiwanese blood donors. | tt virus (ttv) is a newly discovered human dna virus of uncertain clinical significance. the aim of this study was to determine the prevalence of ttv infection among blood donors in taiwan. | 2000 | 11155069 |
| the epidemiology of tt virus (ttv) infection in a hepatitis c and b virus hyperendemic area of southern taiwan. | tt virus (ttv) is a newly isolated dna virus from the serum of a patient with posttransfusion hepatitis of unknown etiology in 1997. to evaluate the clinical and molecular characteristics of tt virus (ttv) in a hepatitis c virus (hcv) and b (hbv) hyperendemic area (masago), 200 residents were enrolled in the study. the sera were tested for alanine aminotransferase (alt), hcv rna and gb virus c/hepatitis g virus (hgv) rna, ttv dna, hbsag, anti-hcv and antibodies to hgv e2-protein (anti-e2). ttv d ... | 2000 | 11272796 |
| epidemiology and clinical significance of chronic hepatitis-related viruses infection in hemodialysis patients from taiwan. | a novel dna virus which was designated tt virus (ttv) in 1997 was considered a possible hepatitis-related virus, like hepatitis c (hcv), hepatitis b (hbv) and gb virus c/hepatitis g viruses (gbv-c/hgv). in the present study, the molecular epidemiology and clinical significance of ttv, gbv-c/hgv and hcv infection in hemodialysis patients from taiwan are investigated. | 2002 | 11818698 |
| the prevalence of tt virus and gb virus c/hepatitis g virus infection in individuals with raised liver enzymes but without hbv or hcv infection in taiwan. | the prevalence of tt virus (ttv) and gb virus-c/hepatitis g virus (gbv-c/hgv) infection and the association with raised liver function tests in 546 taiwanese with negative hbsag, anti-hcv and hcv rna was elucidated. they were tested for serum alanine aminotransferase (alt), gbv-c/hgv rna, anti-envelope protein 2 antibody (anti-e2) and ttv dna. direct sequencing and phylogenetic analyses were performed on 58 isolates for ttv genotype determination. the prevalence of ttv dna, gbv-c/hgv rna, anti-e ... | 2002 | 12403107 |
| clinical characteristics and distribution of genotypes of tt virus infection in a hepatitis c virus-hyperendemic township of a hepatitis b virus-endemic country (taiwan). | the prevalence of tt virus (ttv) viremia, without definite clinical significance, has been reported to be higher among chronic hepatitis c patients. the status and clinical characteristics of tt virus (ttv) infection and distribution of ttv genotypes in a hepatitis c virus (hcv) hyperendemic township (masago community) in a hepatitis b virus (hbv) endemic country (taiwan) were investigated. | 2002 | 12453279 |
| prevalence and clinical significance of sen virus infection among volunteer blood donors in southern taiwan. | of the eight different isolates of sen virus (senv), senv-d and senv-h have been suggested associated with transfusion-associated hepatitis. the prevalence and clinical significance of these two senv strains among blood donors in southern taiwan were investigated in this study. sera of 223 blood donors who were negative for serum hepatitis b surface antigen (hbsag) and third-generation hcv antibody (anti-hcv) from a blood center of southern taiwan were tested for alanine aminotransferase (alt), ... | 2004 | 15387343 |
| sen virus infection among patients on maintenance hemodialysis in southern taiwan. | the prevalence and clinical significance of two sen virus (senv) strains, senv-d and senv-h, was investigated among patients on maintenance hemodialysis in southern taiwan. | 2004 | 16038760 |
| sen virus infection in children in taiwan: transmission route and role in blood transfusion and liver diseases. | sen virus (senv) is a newly discovered dna virus. we conducted this study to evaluate potential modes of senv transmission and the pathogenic effect of senv on liver diseases in children. | 2006 | 16645500 |
| sen virus infection in patients on peritoneal dialysis. | many reports have demonstrated sen virus (sen-v) infection rates in hemodialysis patients, but the sen-v infection rate in peritoneal dialysis (pd) patients has never been reported. in this study, we determined the prevalence rate of sen-v viremia in a pd population. | 2007 | 17179515 |
| prevalence and determinants of senv viremia among adolescents in an endemic area of chronic liver diseases. | senv is a potential causative agent responsible for chronic liver diseases (clds) that are precipitated in early life. senv prevalence in adolescents is unknown and its transmission route is uncertain. | 2007 | 17295867 |
| sen and hepatitis virus infections in nontransfused children and pediatric thalassemia patients with multiple transfusions in taiwan. | southern taiwan is a hepatitis b and c viruses (hbv, hcv) endemic area. sen virus (senv) infection has been suggested as transfusion-related hepatitis. two variants of senv (senv-d and senv-h) have been studied in non-transfused children and transfusion-dependent thalassemia patients. | 2007 | 17341855 |
| tt virus infection in patients on peritoneal dialysis in taiwan. | many studies have reported the prevalence of transfusion-transmitted virus (ttv) infection in hemodialysis patients, but few reports studied the prevalence of ttv infection in peritoneal dialysis patients. in this study, we determined the prevalence of ttv in a peritoneal dialysis population in taiwan and related its prevalence with history of blood transfusion, serum hepatitis b surface antigen (hbsag), antibody to hepatitis c virus (anti-hcv), and serum aminotransferases (ast and alt) levels. ... | 2007 | 17654317 |
| the molecular epidemiology and clinical significance of tt virus (ttv) infection in healthy blood donors from southern taiwan. | to evaluate the molecular epidemiology and clinical significance of th | 2001 | 11515617 |
| co-infection of adenovirus, norovirus and torque teno virus in stools of patients with acute gastroenteritis. | up to now, there has been no report of co-infection of torque teno virus (ttv) with other enteric viruses playing a role in the pathogenesis of viral acute gastroenteritis (age). we investigated the proportion, epidemiological and clinical features of concurrent infections of adenovirus (adv), norovirus (nv) and ttv in stools of 155 patients with age attending wei-gong memorial hospital, miaoli city, taiwan. the presence of the three viruses were determined using pcr-based assays. some 55% of th ... | 2014 | 26466418 |
| new phylogenetic groups of torque teno virus identified in eastern taiwan indigenes. | torque teno virus (ttv) is a single-stranded dna virus highly prevalent in the world. it has been detected in eastern taiwan indigenes with a low prevalence of 11% by using n22 region of which known to underestimate ttv prevalence excessively. in order to clarify their realistic epidemiology, we re-analyzed ttv prevalence with utr region. one hundred and forty serum samples from eastern taiwanese indigenous population were collected and ttv dna was detected in 133 (95%) samples. direct sequencin ... | 2016 | 26901643 |
| tt virus infection in healthy children, children after blood transfusion, and children with non-a to e hepatitis or other liver diseases in taiwan. | serum samples from healthy and diseased children were studied for the presence of ttv dna by nested pcr using primer sets generated from n-22 region and from the untranslated region (utr) of the viral genome. n-22 positive ttv dna was detectable in 33 (27%) of 122 healthy children, 47 (73.4%) of 64 polytransfused thalassemic children, 37 (46.3%) of 80 children who received transfusion during cardiac surgery, 8 (42.1%) of 19 non-a to e hepatitis, 10 (33.3%) of 30 hbv carrier children, and 5 (15.6 ... | 2003 | 12436479 |
| early acquisition of tt virus in infants: possible minor role of maternal transmission. | this study assessed the prevalence of tt virus (ttv) viremia in pregnant women and evaluated the role of maternal transmission in early acquisition of ttv in infants in taiwan. two groups of pregnant women were screened for ttv using polymerase chain reaction. the first group included 135 healthy pregnant women attending the obstetrics department for routine prenatal care and the second group from 25 gb virus-c/hepatitis g virus (gbv-c/hgv)-infected mothers. in both groups, when ttv infection wa ... | 2002 | 11782941 |