South Korea's Bioscience COVID vaccine in late-stage trial
South Korea's SK Bioscience and Britain's GSK announced they will test the efficacy of their COVID vaccine against the AstraZeneca vaccine.
Medical worker prepares a COVID-19 vaccine injection, at a Clalit vaccination center in Jerusalem, January 21, 2021(photo credit: YONATAN SINDEL/FLASH 90)ByREUTERS
