SARS-CoV-2 (COVID-19) rapid test kits in stock and ready to ship today.

How the coronavirus rapid tests work

COVID-19 Antigen (Ag) Rapid Test

According to the gold immunochromatographic test principle, double antibody sandwich method is used to detect SARS-CoV-2 antigen in the samples. When the antigen is contained in the sample, the antigen binds with the corresponding gold labeled monoclonal antibody 1 and the coated monoclonal antibody 2 at the test line to form a compound and then condenses into a red band, indicating a positive result. When the sample does not contain antigen, complex cannot be formed at the test line, and no red band appears, indicating negative result.

COVID-19 IgM/IgG Rapid Test

This COVID-19 rapid test kit is an immunochromatographic assay, using capture method for rapid, qualitative detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lgM/lgG antibody in human serum, plasma or whole blood sample. When the sample contains the SARS-CoV-2 lgM antibody, it forms a complex with the gold label antigen (SARS-CoV-2 recombinant antigen). The complex moves forward under the action of chromatography and combines with the coated antibody (Mouse anti-human lgM monoclonal antibody) at the T2 line to form a complex and develop color (T2 line), which indicates a positive result. When the sample does not contain the SARS-CoV-2 lgM antibody, no complex can be formed at the T2 line, and no red band appears, which indicates a negative result.