Hematologic markers, which have been known to be elevated during COVID-19, include NLR (neutrophil-to-lymphocyte ratio) and PLR (platelet-to-lymphocyte ratio); and although LMR (lymphocyte-to-monocyte ratio) and LCR (lymphocyte-to-C-reactive-protein) have been assumed to be less alarming, they were demonstrated to be directly correlated with disease severity [26]. This evidence concerns the gene CRP and COVID-19.