https://ift.tt/3sePVBi https://ift.tt/2OR9QIc World New York Times March 22, 2021 at 08:00PMU.S. health officials question results from AstraZeneca’s vaccine trial, less than a day after they’re released.

By Rebecca Robbins and Sheila Kaplan from NYT World https://ift.tt/3sePVBi
https://ift.tt/3sePVBi https://ift.tt/2OR9QIc New York Times