[Preprint] Test-negative case-control study: Effectiveness of Oxford-AstraZeneca vaccine in older people during SARS-CoV-2 Gamma variant transmission in Brazil – Adjusted effectiveness was 77.9% for symptomatic Covid-19, 87.6% against hospitalization, and 93.6% against death.
27 Jul, 2021 | 03:41h | UTC
Commentary on Twitter (thread – click for more)
Two new results on vaccine effectiveness of #CoronaVac and #AstraZeneca in #Brazil w/ @otavio_ranzani @juliocroda @datcummings Albert Ko, Jason Andrews and othershttps://t.co/grIg1ydMK6https://t.co/fGmDsi7NdL 1/8
— Matt Hitchings (@MHitchingsEpi) July 23, 2021