id author title date pages extension mime words sentences flesch summary cache txt cord-315300-v3pxb997 Zhang, Haipeng CD4+T, CD8+T counts and severe COVID-19: A meta-analysis 2020-06-20 .txt text/plain 780 55 61 A retrospective study by Liu et al was conducted to investigate the associated between lymphocyte subset counts and severe COVID-19 [1] . Therefore, we conducted this meta-analysis to investigate the relationship between CD4+T counts, CD8+T counts, CD4/CD8 ratio and the severity of COVID-19 patients. Trials providing data of counts of CD4+T, CD8+T or CD4/CD8 ratio in patients with non-severe or severe COVID-19 were included. It has been reported that low counts of CD4+T and CD8+T were associated with adverse outcome in patients with SARS, and the counts would rise dramatically when clinical symptoms improved [9] . Lymphocyte subset (CD4+, CD8+) counts reflect the severity of infection and predict the clinical outcomes in patients with COVID-19 Predictors of mortality for patients with COVID-19 pneumonia caused by SARS-CoV-2: a prospective cohort study ./cache/cord-315300-v3pxb997.txt ./txt/cord-315300-v3pxb997.txt