Diagnostic agents, preparations and substances for medical purposes; Diagnostic kits comprised of medical diagnostic reagents and assays for testing of bodily fluids for use in disease detection, namely, SARS-CoV-2 infection or COVID-19; Diagnostic kits consisting primarily of monoclonal antibodies, buffers, and reagents for use in disease testing; Diagnostic preparations for medical or veterinary purposes; Diagnostic preparations for medical purposes; Medical diagnostic reagents; Medical dia...