Medical diagnostic reagents and assays for testing and analysis of blood, bodily fluids, biological and cellular samples and specimens and tissue; Assays, reagents, solutions, buffers and preparations for medical, clinical and diagnostic use; Diagnostic agents for carrying out serologic tests for medical purposes; Diagnostic reagents for serologic tests of infections for medical purposes; Diagnostic agents, preparations, substances and diagnostic test kits primarily comprised of medical diagnostic reagents and assays, and also consisting of vessels, containers and implements being medical specimen collection and processing devices in the nature of tubes, swabs, bags, vials, laboratory bottles, cups, and laboratory pipettes for the collection and processing of blood, bodily fluids, biological and cellular samples and specimens and body tissue for performing serological and molecular tests, used for detecting antibodies, enzymes, antigens, diseases, viruses and infections for medical, clinical and research purposes; Test kits consisting of medical diagnostic reagents, assays, solutions and buffers for testing in the field of the prevention and treatment of infections, viruses, disorders and diseases; Diagnostic kits comprised of medical diagnostic reagents and assays for testing of blood, bodily fluids, biological and cellular samples and specimens and tissue for use in infection, virus and disease detection, namely, infectious, viral, communicable, blood borne pathogen, vector borne, pulmonary, respiratory, inflammatory, immunological, autoimmune, rheumatic and cardiovascular diseases and disorders; Antibody diagnostic test for use in disease detection; Medical diagnostic test kits comprised of medical diagnostic assays, reagents, media, solutions in the nature of reagent solutions, substrate solutions, stop solutions, staining solutions, standard solutions and buffer solutions, buffers and diagnostic preparations for coronavirus, SARS-CoV-2 and COVID-19 diagnosis and monitoring