Seems fine to me. 85 people from the placebo group caught covid. If the vaccine was completely ineffective you'd expect roughly the same number in the vaccinate

Seems fine to me. 85 people from the placebo group caught covid. If the vaccine was completely ineffective you'd expect roughly the same number in the vaccinated group. The actual number was 9. What you're saying is the 9 is pretty close to 34 (60% effectiveness). No, it isn't. You'd need to quadruple the number of vaccinated cases to get there. Even if you double them, you're still at 80% so I'd take that as the realistic worst case. Edit: Also, this is BioNTech's vaccine, not Pfizer's. They partnered with Pfizer as they have the facilities and scale for a massive rollout, but it was developed by BioNTech. I wish they were getting more credit in the US & UK coverage.