Recently, vitamin D deficiency is considered as a risk factor for the incidence and severity of new coronavirus infection. The aim of this work was to evaluate the vitamin D level of patients with COVID-19 hospitalized with community-acquired pneumonia and compare the value of 25(OH)D in blood serum with the clinical manifestations of the disease. Results. Included are 80 patients aged 18 to 94 years (mean age 53,2 ± 15,7 years), 43 (53,8%) men; with severe course – in 25 (31,3%) patients (12 males), and moderate – in 55 people (68,7%) (31 males). Half of the severely ill patients were obese, and among the deceased patients, the number of obese people was 61,5%, which was significantly higher than the discharged ones – 14,9% (p