Department of Medicine, University of Chicago, Chicago, Illinois.
Providence Research Network, Renton, Washington.
JAMA Netw Open. 2022 Apr 1;5(4):e227650. doi: 10.1001/jamanetworkopen.2022.7650.
This cohort study compares rates of COVID-19 between unvaccinated adults who did and did not previously test positive for SARS-CoV-2.
这项队列研究比较了未接种疫苗且既往 SARS-CoV-2 检测呈阳性与阴性的成年人 COVID-19 发病率。