COVID-19 (Whole Blood/Serum/Plasma) IgG and IgM Antibody Rapid Detection Test – These tests utilize IgG antibodies and IgM antibodies in an immunochromatographic sandwich. These testing assays detect the reaction between a positive sample and the colored particle-conjugated antibody forms a complex that migrates along the membrane. If an IgG antibody is present, a complex will be formed and captured by the IgG antibody forming a red G line indicating a positive result for the IgG antibody. If an IgM antibody is present in the sample, a complex will be formed and be captured by the IgM antibody immobilized on the membrane, forming a red M line and indicating a positive result for the IgM antibody. An internal control line C (control) area is built-in to assure that the test has been carried out correctly.