Polarization and health-related behaviours and outcomes during the COVID-19 pandemic: a systematic review protocol.

Introduction: The COVID-19 pandemic affected people's health behaviours and health outcomes. Political or affective polarization could be associated with health behaviours such as mask-wearing or vaccine uptake and with health outcomes, e.g.

COVID-19 vaccine acceptance in the general population and under-resourced communities from high-income countries: realist review.

Objective: To compare vaccination willingness before rollout and 1 year post-rollout uptake among the general population and under-resourced communities in high-income countries.

Design: A realist review.

Data Sources: Embase, PubMed, Dimensions ai and Google Scholar.