Increased interleukin-6 is associated with long COVID-19: a systematic review and meta-analysis.
Jing-Xian YinYannick Luther AgbanaZhi-Shan SunSi-Wei FeiHan-Qing ZhaoXiao-Nong ZhouJun-Hu ChenKokouvi KassegnePublished in: Infectious diseases of poverty (2023)
This study showed that increased IL-6 correlates with long COVID-19. Such an informative revelation suggests IL-6 as a basic determinant to predict long COVID-19 or at least inform on the "early stage" of long COVID-19.