Description Reviews 3-in-1 Covid + Flu A & B Antigen Test Our three-in-one flu test only requires one sample, delivers clear results at 15 minutes, and has a 24 month shelf life. Click here for Covid / Flu test product instructions. Related Products COVID-19/Flu A&B Ag Combo Rapid Test Cassette (Swab), 25 Tests/Box $145.00 Add to Cart Flowflex™ Covid-19 Antigen Home Test, 10 Tests ($5.99 per test) $59.99 Add to Cart BioSign® Flu A & B Test, 25 Tests/Box $290.00 Options Rapid Check™ Respiratory Syncytial Virus RSV Antigen Test, CLIA Waived, 20/Box $229.00 Options Prostate-Specific Antigen (Blood Spot) $75.00 Add to Cart