Immune colloidal gold technique kit This product is used to qualitative detection of the presence of IgM and/or IgG antibody to SARS-CoV-2 in Human serum, plasma and 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.