Prevention and Attenuation of Covid-19 with the BNT162b2 and mRNA-1273 Vaccines

Study (n=3975) found Pfizer–BioNTech and Moderna vaccines were highly effective in preventing SARS-CoV-2 infection (91% full and 81% partial vaccination) and attenuated risk of febrile symptoms, and duration of illness in those with breakthrough infection despite vaccination.

New England Journal of Medicine