I am very sympathetic to Robert Waldmann’s argument that we should give twice as many people one dose of the new Pfizer/Moderna vaccines, at least until supply constraints are eased, instead of following the FDA approved vaccination protocol and giving everyone two doses right from the beginning. What follows is a rough way of thinking […]

So Far the efficacy data has been presented. As reported in the press earlier, the vaccine is roughly 95% effective, that is roughly 95% of people who got Covid 19 during the trial were participants who received the placebo. Importantly, the null hypothesis that just one dose is just as good as two was not […]