欧洲疾控中心：2023年10月至2024年4月在VEBIS监测网络中的八个欧洲国家使用电子健康记录的COVID-19疫苗在预防住院和死亡方面的效果报告（英文版）

This report presents pooled vaccine effectiveness (VE) estimates for the Pfizer XBB.1.5 monovalent COVID-19 vaccine dose against hospitalisation and COVID-19-related death in resident populations in eight European countries. The dose was administered during the 2023 autumn campaign against COVID-19. The study populations were those aged ≥65 years living in the community in Belgium, Denmark, Italy, the Netherlands (only until December 2023), Norway (only until February 2024), Portugal, Spain (