Clinical Value of Inflammatory Biomarkers in Determining Severity of COVID-19.

: COVID-19 infection can occur as a mild, moderate, or severe illness. How patients will be more serious has not been fully revealed so far. To investigate the role of systemic inflammation index (SII), platelet-to-lymphocyte ratio (PLR), mean platelet volume (MPV), mean platelet volume to platelet ratio (MPR), and neutrophil-to-lymphocyte and platelet ratio (NLPR) in determining the severity of COVID-19 patients.