The risk of thrombotic complications in COVID-19 cases has been associated with various biomarkers related to inflammation, such as C-reactive protein (CRP), ferritin, D-dimer, lactate dehydrogenase (LDH), platelet-to-lymphocyte ratio (PLR), and neutrophil-to-lymphocyte ratio (NLR). The gene discussed is CRP; the disease is COVID-19.