Inactivated vaccine protects against severe outcome among adults aged over 60 years during SARS-CoV-2 Omicron variant predominance: evidence from a single-center cohort
SUN Feng1, ZHANG Yilin1, LI Yang1, ZHANG Haocheng1, LIU Qihui1, AI Jingwen1, WANG Sen1, CUI Shuzheng2, SHI Liubin2, XUE Yu2, LONG Feng2, MA Ke2, QIN Lunxiu2, ZHANG Jiming1, ZHANG Wenhong1
