Medical diagnostic immunoassays for testing of body fluids; Medical diagnostic rapid point-of-care test kits being specimen collection kits for use in virus testing, comprised primarily of nasal swabs, nasopharyngeal swabs or oropharyngeal swabs for medical purposes, and also including test cassettes, plastic bags, boxes and buffer solutions for body secretion collection, as well as printed instructions for use, all for the detection of antibodies, antigen and viruses