Journal article
BNT162b2 mRNA COVID-19 against symptomatic Omicron infection following a mass vaccination campaign in southern Brazil: A prospective test-negative design study
Abstract
BACKGROUND: Evidence regarding effectiveness of BNT162b2 mRNA COVID-19 vaccine against Omicron in Latin America is limited. We estimated BNT162b2 effectiveness against symptomatic COVID-19 in Brazil when Omicron was predominant.
METHODS: This prospective test-negative, case-control study was conducted in Toledo, Brazil, following a mass COVID-19 vaccination with BNT162b2. Patients were included if they were aged ≥12 years, sought care for acute …
Authors
Rosa RG; Falavigna M; Manfio JL; de Araujo CLP; Cohen M; do Valle Barbosa GRG; de Souza AP; Silva FKR; Sganzerla D; da Silva MMD
Journal
Vaccine, Vol. 41, No. 37, pp. 5461–5468
Publisher
Elsevier
Publication Date
August 2023
DOI
10.1016/j.vaccine.2023.07.038
ISSN
0264-410X