SYK - COVID-19 actions - healthcare April, 03 2020 08:14 AM Stryker Corporation Aytu BioScience (NASDAQ:AYTU) has begun shipping its rapid antibody blood test for COVID-19. Shares up 8% premarket.More news on: Aytu BioScience, Inc., Stryker Corporation, Novartis AG, Healthcare stocks news, Stocks on the move, Read more ...