Study objective: to perform assessment of the social and economic burden (analysis of the cost of disease) of five natural focal transmitted infectious diseases in theRussian Federationon the whole and in certain regions: ixodic tick-borne borreliosis. Siberian tick-borne typhus. Astrakhanrickettsial fever. Crimean hemorrhagic fever. https://megavitamines.shop/product-category/vinpocetine/