Vaccine

Effectiveness of ChAdOx1 vaccine in older adults during SARS-CoV-2 Gamma variant circulation in São Paulo

Hitchings MDT, Ranzani OT, Dorión M, ..., Ko AI, Croda J

Oct 28, 2021

Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study

Ranzani OT, Hitchings MDT, Dorión M, ..., Ko AI, Croda J

Aug 20, 2021