The COVID-19 Antigen rapid test kit from the manufacturer Hangzhou Clongene Biotech Co., Ltd. delivers a highly precise test result (98.50% sensitivity and 100% specificity) in a very short time (<15 min). The COVID-19 Antigen Rapid Test Cassette is a lateral flow immunoassay method for the qualitative detection of SARS CoV-2 nucleocapsid antigen in nasopharyngeal and oropharyngeal swabs as well as saliva from individuals suspected by their healthcare provider to be COVID-19 infected.