The prospects of successfully developing a coronavirus vaccine as soon as this year were buoyed Monday when three of the world’s leading candidates reported positive early trial data. Vaccines being developed by University of Oxford researchers and AstraZeneca PLC; Pfizer Inc. and German partner BioNTech SE; and China’s CanSino Biologics all reported fresh updates showing their shots generated immune responses and were safe to use.

Source: Wall Street Journal July 20, 2020 14:13 UTC