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A comment on Pfizer submits Covid vaccine to FDA for approval, to distribute in December. Parent comment

Re:Pfizer submits Covid vaccine to FDA for approval, to dist... by bluGill on Friday November 20, 2020 @09:25AM (#25160669)
Because it is only 95% effective. If everyone around me is also vaccinated it is likely that even if my vaccine doesn't work I'm still protected. This is what herd immunity is about.

Note that we don't know if vaccinated people can spread covid or not. It seems unlikely, but if it turns out being vaccinated means you become a non-symptomatic super spreader I reserve the right to change my stance based on that information.

[ Parent | on HN ]
Re:Pfizer submits Covid vaccine to FDA for approval, to dist... by anonuser123456 on Friday November 20, 2020 @10:02AM (#25161051)
The 95% effective is not a cliff function. The 5% that ‘get it’ have mild symptoms. We won’t know how effective it at preventing serious disease until millions have been inoculated, but it will likely be 99%+ effective with that outcome.
[ Parent | on HN ]
Re:Pfizer submits Covid vaccine to FDA for approval, to dist... by bluGill on Friday November 20, 2020 @02:21PM (#25163868)
We know that in one of the trials one of the serious cases was in the intervention group. We will of course need a lot more data to figure out what the real reduction in rate of serious events is.
[ Parent | on HN ]