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HBsAg test is a rapid direct binding test for the visual detection of hepatitis B antigen (HBsAg) as an aid in the diagnosis of hepatitis B infection. It is based on the principle of sandwich immunoassay for determination of HBsAg in human serum specimen. Two monoclonal antibodies are employed to identify HBsAg specifically. This one-step test is very sensitive and only takes about 15-20 minutes.






