WEST NILE FEVER IN THE SARATOV REGION IN 2013-2015.

Authors :: Kazorina EV
Krasovskaya TY
Kazantsev AV
Naydenova EV
Sharova IN
Zakharov KS
Porshakov AM
Chekashov VN
Matrosov AN
Shilov MM
Yakovlev SA
Knyazeva TV
Tolokonnikova SI
Mironova NI
Chastov AA
Kazakova LV
Kirillova LP
Krasilnikova NN
Kozhanova OI
Shcherbakova SA
Kutyrev VV
Source :: Voprosy virusologii [Vopr Virusol] 2017 Oct 20; Vol. 62 (5), pp. 219-226. Date of Electronic Publication: 2017 Oct 20.
Publication Year :: 2017
Abstract: West Nile virus (WNV) circulation in the territory of Saratov region and its role in the infectious pathology were investigated. For this purpose, in studies conducted in 2013-2015, suspensions of bloodsucking arthropods, organs of birds and small mammals were analyzed for the presence of WNV markers (antigens and/or RNA). The seroprevalence level in live-stock animals and population of the region was evaluated; clinical samples from patients with symptoms compatible with West Nile fever (WNF) were analyzed. As a result of the investigations, WNV markers were detected in field samples gathered in natural biotopes and in the city of Saratov. Immunity to WNV was detected in horses. A stable domain of persons with immunity to this agent was revealed among regional population. Patients with WNF have been annually registered in the region since 2012. The obtained results confirm active circulation of WNF in the Saratov region, as well as formation of stable natural and anthropourgic foci.