发布日期：2007-01-01
英文标题：Asian Pacific Association for the Study of the Liver consensus statements on the diagnosis, management and treatment of hepatitis C virus infection
来源：J Gastroenterol Hepatol, 2007, 22(5): 615-633
Past exposure to hepatitis C virus (HCV) is mostly determined by testing for specific antibodies using an approved enzyme immunoassay (EIA). The presence of antibody shows that the patient has been infected with the virus but does not indicate whether the infection is acute, chronic or resolved. The absence of antibody usually shows that the patient has not been infected. However, antibody might not be detectable in the first few weeks after initial infection (known as the window period) or in patients who are immunosuppressed. Furthermore, there is some evidence that in patients who resolve their infection, antibody levels might decrease and become undetectable many years later.
