“…In the case of COVID-19, the situation is aggravated by the fact that, due to the scale of the epidemic, doctors of various profiles are forced to be involved in the process of diagnosis and treatment, including those who do not have special knowledge in viral infections and who make decisions based on incomplete information. To help in the diagnosis and treatment of this class of diseases and to reduce significantly the percentage of doctors’ errors [ 3 , 4 ], as noted in many literature sources, intelligent systems for supporting medical decision making exist. This article is devoted to description of the basic principles, architecture, information, and software components of the system aimed at the differential diagnosis and treatment of COVID-19.…”