Anti-SARS CoV-2-IgG Antibody Detection ELISA is an in vitro diagnostic kit for the detection of Anti-SARS CoV- 2 (Covid-19) Virus infection in human serum/plasma samples. IgG antibodies from serum/plasma of human will bind to the SARS CoV-2 virus whole cell antigen coated on to the Microtiter plate (ELISA wells). In the next step, anti-Human IgG HRP binds to captured human IgG antibodies. Subsequently, chromogenic substrate (TMB/H2O2) is added, the reaction is stopped by 1N H2SO4. The intensity of colour / optical density is measured at 450 nm.