Hepatitis B Envelope Antigen(HbeAg) Rapid Test is a qualitative blood test to detect the presence or absence of hepatitis B e-antigen. This test is useful for diagnosing active hepatitis B infection, the risk of spreading the virus and response to antiviral medicines. Envelope Antigen for Hepatitis B can be detected at the initial phase of infection. A positive test is indicative of high viral activity and infectivity.