A single dose of the Pfizer–BioNTech vaccine is 92.6% effective in preventing Covid-19. Is delaying the second dose to get more people vaccinated an alternative?
19 Feb, 2021 | 02:59h | UTCSafety and Efficacy of the BNT162b2 mRNA Covid-19 Vaccine – New England Journal of Medicine
Commentary: Researchers urge delaying Pfizer vaccine’s second dose as first highly effective – Reuters