I read the method used to measure efficacy: They have tested 44,000 people. 50% got a placebo, 50% got a vaccine. Then has been giving them the freedom to get the covid.
95% of the 50% who got the vaccine haven't contracted the virus.
Correct me if I am wrong. Supposing a random person has a 5-10% chance of contracting the virus (according to average cases/testing worldwide), should the efficacy be 5-10% * 95% = 0.7%-0.5%?
Correct me if I am wrong. Supposing a random person has a 5-10% chance of contracting the virus (according to average cases/testing worldwide), should the efficacy be 5-10% * 95% = 0.7%-0.5%?