CAS-Envision SARS-CoV-2 Antigen Rapid Detection Kit is a colloidal gold immunochromatography intended for the qualitative detection of nucleocapsid antigens from SARS-CoV-2 in human nasal vestibule swab or oral cavity and saliva swab specimen. It does not rely on professional equipment, nor does it require the operator to receive professional training. Just follow the product instruction manual to complete the rapid qualitative test of Novel Coronavirus.