> In Moderna's trial, 15,000 study participants were given a placebo, which is a shot of saline that has no effect. Over several months, 90 of them developed Covid-19, with 11 developing severe forms of the disease.
> Another 15,000 participants were given the vaccine, and only five of them developed Covid-19. None of the five became severely ill.
> In Moderna's trial, 15,000 study participants were given a placebo, which is a shot of saline that has no effect. Over several months, 90 of them developed Covid-19, with 11 developing severe forms of the disease.
> Another 15,000 participants were given the vaccine, and only five of them developed Covid-19. None of the five became severely ill.
https://edition.cnn.com/2020/11/16/health/moderna-vaccine-re...