Higher levels of serum inflammatory biomarkers such as interleukin-6 (IL-6), and C-reactive protein (CRP), serum ferritin, and coagulation factors (D-Dimer) have also been reported in patients with diabetes mellitus and COVID-19, concluding that people with diabetes are more susceptible to cytokine storm leading to acute respiratory distress syndrome (ARDS).21 Here, CRP is linked to diabetes mellitus.