Additionally, there are studies that have shown the association between COVID-19 severe cases and different biomarkers, such as lymphopenia, thrombocytopenia, D-dimer, serum creatinine, lactate dehydrogenase, C-reactive protein, procalcitonin, creatinine kinase, cardiac troponin, etc. [17,18,19,20]. This evidence concerns the gene CRP and COVID-19.