The HBsAg/HCV/HIV/Syphilis Combo Rapid Test Cassette(Serum/Plasma) is a rapid chromatographic immunoassay for the qualitative detection of Hepatitis B surface antigen(HBsAg),antibodies to Hepatitis C Virus, antibodies to HIV type 1, type 2 and syphilis antibodies (IgG and IgM) to Treponema Pallidum (TP) in serum or plasma.