REDx™ FLOQ® SARS-CoV-2 Ag Swab Positive Control is formulated with SARS-CoV-2 nucleocapsid (N) protein. SARS-CoV-2 Ag Swab Positive Control can be utilized as an external sample to monitor the process of SARS-CoV-2 nucleocapsid protein antigen detection assays including sample elution, separation and detection