Partial COVID-19 vaccination, vaccination following SARS-CoV-2 infection and heterologous vaccination schedule: summary of evidence

This document provides a review of evidence on three topics of interest (effectiveness of partial vaccination, immunogenicity and effectiveness of vaccination for previously infected individuals and safety and immunogenicity of heterologous schedules) to inform ongoing decision-making in relation to national vaccination policies and strategies in the European Union and European Economic Area (EU/EEA) countries.