CRP and COVID-19: Considering the literature, it was shown that inflammatory markers such as CRP, ferritin, fibrinogen, fibrinogen, and interleukin-6 can be used in the prediction of severe disease and mortality in COVID-19 [32], and in severe COVID-19 patients, it was reported that increased serum neutrophil percentages and LDH levels can be used to predict the risk of death in areas where oxygen saturation (Sa02) cannot be measured [33].