People with diabetes are a particularly vulnerable group of patients regarding infections [13], and during COVID-19, it was demonstrated that DM is a pro-inflammatory syndrome characterized by an inadequate cytokine response, with significantly higher concentrations of interleukin-6 (IL-6), ferritin, and C-reactive proteins in the blood compared with COVID-19-positive patients without diabetes [14,15,16]. The gene discussed is IL6; the disease is COVID-19.