CVS Health, Woonsocket, Rhode Island.
JAMA Netw Open. 2021 Dec 1;4(12):e2143346. doi: 10.1001/jamanetworkopen.2021.43346.
This case-control study evaluates the estimated vaccine effectiveness against infection changes over time to help inform public health policy and clinical practices.
本病例对照研究评估了疫苗对感染的估计有效性随时间的变化,以帮助为公共卫生政策和临床实践提供信息。