I note this article unhelpfully states a single dose is only 52% effective. That’s the average protection over the first 21 days - from day 10 to 22 the efficacy value is 86%.— Covid Fact Check UK (@fact_covid) January 19, 2021
I note this article unhelpfully states a single dose is only 52% effective. That’s the average protection over the first 21 days - from day 10 to 22 the efficacy value is 86%.