February 2022: Study investigates the effectiveness of primary dose CoronaVac COVID-19 vaccines and Pfizer BioNTech booster vaccines in 14 million people in Brazil Vaccine effectiveness of heterologous CoronaVac plus BNT162b2 in Brazil Cerqueira-Silva, T; Srinivasa, V.K; de Araujo Oliveria, V; Flores-Ortiz, R; et.al. Nature Medicine Published online on: 9 February 2022 Available online at: https://doi.org/10.1038/s41591-022-01701-w This article was published on 2024-09-24
