Could the Oxford/AstraZeneca vaccine change the course of the Covid-19 pandemic?

New data on the Oxford/AstraZeneca Covid-19 vaccine new data on its coronavirus vaccine suggests it may reduce transmission by 67% (Owen Humphreys/PA)
New data on the Oxford/AstraZeneca Covid-19 vaccine new data on its coronavirus vaccine suggests it may reduce transmission by 67% (Owen Humphreys/PA)