A region of correlations between ferritin, lactic dehydrogenase, respiratory rate, pulmonary involvement, fibrinogen, C-reactive protein, neutrophils to lymphocytes ratio, leukocytes, and neutrophils is present in groups that survived COVID-19 (FYR, MYR, and MOR groups) while is lost for the groups of deceased (Figure 5). Here, CRP is linked to COVID-19.