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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 abacadaba on Friday November 20, 2020 @09:12AM (#25160571)
Wondering how they determine which need a booster and which don't. Is this based on phase one data or more of an educated guess?
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Re:Pfizer submits Covid vaccine to FDA for approval, to dist... by SAI_Peregrinus on Friday November 20, 2020 @09:35AM (#25160761)
Phase 1 &2 data. 1 is mostly safety checks, but it involves several dosing profiles (typically starting low) to get a safety profile. 2 tests dose response and more detailed safety. 3 tests efficacy using the dose profile determined by phase 2.
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