“…Currently, published researches indicate the presence of features of the interaction of the causative agents of tick-borne encephalitis and tick-borne borreliosis in mixed infection [10,13,14,26]. At the same time, special attention is paid to the focal form of mixed tick-borne encephalitis-borreliosis infection, characterized by damage to the nervous system with the development of persistent neurological disorders and possible death [2, 16,22,27].…”