The AllTest COVID-19 Antigen Rapid Test Kit For Professional Use (Saliva) is a rapid chromatographic immunoassay that aids in the qualitative detection of SARS-CoV-2 nucleocapsid protein antigens present in human oral fluid. It is a simple self-testing kit that is less invasive and can be performed by any minimally trained health professionals. The test result can be obtained rapidly and can be interpreted with visuals easily.