The effectiveness of COVID-19 vaccines against severe cases and deaths in Brazil from 2021 to 2022: a registry-based studyResearch in context

• Main Authors: Cleber Vinicius Brito dos Santos (Author), Naiara Cristina Morais Valiati (Author), Tatiana Guimarães de Noronha (Author), Victor Bertollo Gomes Porto (Author), Antônio Guilherme Pacheco (Author), Laís Picinini Freitas (Author), Flávio Codeço Coelho (Author), Marcelo Ferreira da Costa Gomes (Author), Leonardo Soares Bastos (Author), Oswaldo Gonçalves Cruz (Author), Raquel Martins Lana (Author), Paula Mendes Luz (Author), Luiz Max Fagundes de Carvalho (Author), Guilherme Loureiro Werneck (Author), Claudio José Struchiner (Author), Daniel Antunes Maciel Villela (Author)
• Format: Book
• Published: Elsevier, 2023-04-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary: Background: Brazil started the COVID-19 mass vaccination in January 2021 with CoronaVac and ChAdOx1, followed by BNT162b2 and Ad26.COV2.S vaccines. By the end of 2021, more than 317 million vaccine doses were administered in the adult population. This study aimed at estimating the effective...