Pinho J R, Zanotto P M, Ferreira J L, Sumita L M, Carrilho F J, da Silva L C, Capacci M L, Silva A O, Guz B, Gonçales F L, Gonçales N S, Buck G A, Meyers G A, Bernardini A P
Serviço de Virologia, Instituto Adolfo Lutz, São Paulo, Brazil.
J Clin Microbiol. 1999 May;37(5):1634-7. doi: 10.1128/JCM.37.5.1634-1637.1999.
The prevalence of GB virus C (GBV-C) in candidate Brazilian blood donors with normal and elevated alanine aminotransferase levels was found to be 5.2% (5 of 95) and 6.5% (5 of 76), respectively. Among Brazilian patients, GBV-C was found in 9.5% (13 of 137) of cases of hepatitis not caused by hepatitis A virus (HAV), HBV, HCV, HDV, or HEV (non-A-E hepatitis) and in 18.2% (8 of 44) of individuals infected with HCV. Molecular characterization of GBV-C by partial sequencing of the NS3 region showed clustering between members of a single family, implying intrafamilial transmission. In conclusion, these results together suggest that contagion mechanisms which facilitate intrafamilial transmission of GBV-C may partially explain the high prevalence of viremic carriers worldwide.
在巴西丙氨酸转氨酶水平正常和升高的候选献血者中,GB病毒C(GBV-C)的流行率分别为5.2%(95例中有5例)和6.5%(76例中有5例)。在巴西患者中,在9.5%(137例中有13例)的非甲型肝炎病毒(HAV)、乙型肝炎病毒(HBV)、丙型肝炎病毒(HCV)、丁型肝炎病毒(HDV)或戊型肝炎病毒(HEV)引起的肝炎病例(非甲-戊型肝炎)以及18.2%(44例中有8例)的HCV感染者中发现了GBV-C。通过对NS3区域进行部分测序对GBV-C进行分子特征分析,结果显示一个家族的成员之间存在聚类,这意味着存在家族内传播。总之,这些结果共同表明,促进GBV-C家族内传播的传染机制可能部分解释了全球病毒血症携带者的高流行率。