WANTAI SARS-CoV-2 Ab ELISA is an enzyme-linked immunosorbent assay (ELISA) for qualitative detection of total antibodies to SARS-CoV-2 virus in human serum or plasma specimens. The kit is intended for screening of patients suspected for infection with SARS-CoV-2 virus, and as an aid in the diagnosis of the coronavirus disease 2019 (COVID-19).