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机译:Effectiveness of vaccines in preventing hospitalization due to COVID-19 A multicenter hospital-based case-control study, Germany, June 2021 to January 2022
Robert Koch Inst;
Paul Ehrlich Inst;
Vivantes Klinikum Neukolln & SpandauVivantes Netzwerk Gesundheit GmbHVivantes Auguste Viktoria KlinikumVivantes Klinikum FriedrichshainSchon Klin DusseldorfHelios Klinikum Berlin BuchAlbertinen Krankenhaus;
COVID-19; Vaccine effectiveness; Hospitalization; Case-control study; SARS-CoV-2; Delta;