Paraná R, Lyra M
Federal University of Bahia, Brazil.
Braz J Infect Dis. 2000 Oct;4(5):214-6.
Three new hepatitis viruses are reviewed; Hepatitis E Virus (HEV), Hepatitis G Virus (HGV), and Transfusion Transmitted Virus (TTV). Only HEV has been clearly associated with liver damage. It is transmitted by the fecal-oral route and tends to occur in poor socio-economic conditions. Acute disease is diagnosed by the presence of anti-HEV IgM antibodies in the serum. Hepatitis G virus and TTV are transmitted parenterally. HGV is the same agent as GBV-C. Although it is hepatotropic, and high levels of viremia may occur, pathogenicity to the liver has not been proven. TTV may also be transmitted by the fecal-oral route. It is abundant in liver tissue but, like HGV, pathogenicity has not been proven.
戊型肝炎病毒（HEV）、庚型肝炎病毒（HGV）和输血传播病毒（TTV）。只有戊型肝炎病毒已明确与肝损伤相关。它通过粪-口途径传播，且往往发生在社会经济条件较差的情况下。急性疾病通过血清中抗戊型肝炎病毒IgM抗体的存在来诊断。庚型肝炎病毒和输血传播病毒通过肠道外途径传播。庚型肝炎病毒与GBV-C是同一病原体。尽管它具有嗜肝性，可能会出现高病毒血症，但尚未证实其对肝脏具有致病性。输血传播病毒也可能通过粪-口途径传播。它在肝组织中含量丰富，但与庚型肝炎病毒一样，尚未证实其具有致病性。
