>>Booster effectiveness relative to primary series was 26·2% (95% CI 23·6–28·6) against infection
Sorry, maybe I'm an idiot, but what does this mean? "Effectiveness against infection" - does that mean that 26% of participants who got the booster did not contract corona-19?
Sorry, maybe I'm an idiot, but what does this mean? "Effectiveness against infection" - does that mean that 26% of participants who got the booster did not contract corona-19?