Medical workers are a group at increased risk of infection with the SARS-CoV-2 virus when providing medical care in modern conditions. The novel coronavirus infection can be considered as an occupational disease in medical workers if the infection occurred while performing their professional duties. One of the most important complications of the new coronavirus infection is the lesion of the cardiovascular system. The presented clinical case reflects one of the possible serious complications of the coronavirus infection that developed in a medical worker against the background of chronic autoimmune pathology, i.e. severe myocarditis with pulmonary embolism, which led to the formation of inflammatory cardiomyopathy with congestive heart failure. The article presents the principles and results of a medical examination conducted in order to establish a causal relationship between the disease and professional activity.