2.1 Study design, setting and participants
This is a report on an ongoing nationwide survey of perceptions and
attitudes about COVID-19 vaccines, conducted among people aged 18 and
over, living in Brazil. The study uses social media as a recruitment
platform and the survey will remain open until December, 2021 to capture
temporal trends. This study has been conducted according to the
guidelines laid down in the Declaration of Helsinki and all procedures
involving research study participants were approved by the UFSCar’s
Research Ethics Committee (Number: 45530521.2.0000.5504). Electronic
informed consent was obtained from all subjects.