No abstract

Results of retrospective epidemiologic analysis of population morbidity in different regions of the Russian Federation and epidemic situation of West Nile fever in the territory of Russia are presented. Analysis was based on the reports of Rospotrebnadzor Administrations in the subjects of the Russian Federation and general publications of research institutes which carried out investigations of West Nile fever. Epidemic manifestations of this infection are identified in the Astrakhan, Volgograd, Rostov and Ulyanovsk regions. Circulation of West Nile virus is registered in 22 territories of Russia. The average seroprevalence of West Nile virus antibodies in population of different regions varies (1% in the West Siberia, 3% in the Rostov region and 10% in the Astrakhan, Volgograd regions and the Republic of Adygeya). The prognosis of epidemic development in near future demonstrated that spread of West Nile fever to the North territories of Russia would continue. The outbreaks of infection are possible in the territories where epidemic manifestations have not been noticed previously but virus circulation is identified in nature. The necessity of monitoring of West Nile virus in all territories of Russia is proved.