Package size 1 test/kit, 10 tests/kit, 20 tests/kit, 50tests/kit and 100 tests/kit. Intended use This product is used to qualitative detection of the presence of IgG antibody to SARS-CoV-2 in Human serum, plasma and/or whole blood. The common symptoms are fever, cough, polypnea and anhelation when infected with SARS-CoV-2. In more serious cases, infection may cause pneumonia, severe acute respiratory syndrome, renal failure and even death. Coronavirus can be excreted through respiratory secretions and transmitted by air droplet. Infection may be caused by saliva, sneeze and contact. Principle A Monoclonal Mouse Anti-Human IgG conjugated to colloidal gold and embedded in the sample pad reacts with the IgG antibody to SARS CoV-2 present in whole blood, serum or plasma forming conjugate/ SARS-CoV-2 antibody complex. As the mixture is allowed to migrate along the test strip, the conjugate/ SARS-CoV-2 antibody complex is captured by recombinant SARS-CoV-2 antigen immobilized on a membrane forming a colored test line in the test region.