The effectiveness of the AstraZeneca vaccine in older adults during SARS-CoV-2 Gamma variant circulation in São Paulo was 77.9% against symptomatic Covid-19, 87.6% against hospitalization, and 93.6% against death.
29 Oct, 2021 | 10:25h | UTC
Commentary on Twitter (thread – click for more)
https://twitter.com/MHitchingsEpi/status/1453779176826105857