There are many tests for COVID testing, but the preliminary test is the rapid diagnostic test (RDT) of a sample of a person's respiratory tract helps detect the viral proteins (antigens) related to the COVID-19 virus.
There are many tests for COVID testing, but the preliminary test is the rapid diagnostic test (RDT) of a sample of a person's respiratory tract helps detect the viral proteins (antigens) related to the COVID-19 virus. This ensures a speedy and perfect diagnosis, and its usage is CDC-approved.
