scholarly journals Natural Focal Viral Fevers in the South of European Part of Russia. West Nile Fever

2020 ◽  
pp. 109-114
Author(s):  
O. V. Maletskaya ◽  
D. A. Prislegina ◽  
T. V. Taran ◽  
A. E. Platonov ◽  
V. M. Dubyansky ◽  
...  
Keyword(s):  
Russian Federation ◽  
Geographic Area ◽  
Epidemiological Survey ◽  
European Part ◽  
The South ◽  
West Nile Fever ◽  
Survey Period ◽  
West Nile ◽  
The North ◽  
The Russian Federation

Aim. Investigation of modern epizootic and epidemic situation on West Nile fever (WNF) in the south of the European part of the Russian Federation. Materials and methods. Data from statistical documentation (epidemiological survey of the infectious disease focus, annual summary reports over the period of 2009–2018) and epizootic monitoring data presented by the Rospotrebnadzor Administrations and the Centers of Hygiene and Epidemiology in the constituent entities of the Southern and the North Caucasian Federal Districts were used. Descriptive, analytical methods and retrospective epidemiological analysis were applied. Results and discusson. The activity of natural WNF focus in the south of the European part of the Russian Federation was confirmed by the results of the annual epizootiological monitoring and the annual epidemic manifestations of the disease. 74.15 per cent of the cases and all major WNF outbreaks in the country between 2009 and 2018 were noted in the territory of the southern region. Most of the patients (97.8 per cent) are registered in the Volgograd, Astrakhan and Rostov Regions. In other southern entities sporadic incidence (this represents 2.2 per cent of all WNF cases in the south of the Russian Federation) was noted. Less serious clinical forms of the disease without the damage of central nervous system were observed in most of WNF patients. Fatal outcomes were registered in 7 WNF patients (this represents 0.58 per cent of all cases) over the past 10 years. The significant expanding of the West Nile virus geographic area and activation of the natural foci of this infection in the south of the Russian Federation in 2009- 2018 has been established. The epizootic and epidemic WNF center is located in the Volgograd, Astrakhan and Rostov Regions. It was confirmed by persistent epizootic and epidemic instability in this territory. The modern epidemic WNF feature in the south of the European part of the Russian Federation during the 10-year survey period is the relatively low mortality (0.58 per cent).

scholarly journals Arbovirus infections incidence in the south of the European part of the Russian Federation

2021 ◽  
Vol 98 (1) ◽  
pp. 84-90
Author(s):  
N. F. Vasilenko ◽  
D. A. Prislegina ◽  
O. V. Maletskaya ◽  
T. V. Taran ◽  
A. E. Platonov ◽  
...  
Keyword(s):  
Dengue Fever ◽  
Russian Federation ◽  
Viral Encephalitis ◽  
Clinical Manifestations ◽  
European Part ◽  
Epidemiological Surveillance ◽  
The South ◽  
West Nile Fever ◽  
West Nile ◽  
The Russian Federation

Purpose: analysis of the arbovirus infections incidence in the south of the European part of the Russian Federation in 2015–2019.Materials and methods. Data from statistical documentation (epidemiological examination of the infectious disease cases, reports on the arbovirus infections incidence) reported by Departments of Rospotrebnadzor to Scientific and Methodological Center for monitoring pathogens of infectious and parasitic diseases of 1–3 risk groups for subjects of the North Caucasian and Southern Federal Districts were analyzed. The obtained data were processed using Microsoft Excel 2010 program.Results. In the south of the European part of the Russian Federation Crimean-Congo hemorrhagic fever (CCHF), West Nile fever (WNF), tick-borne viral encephalitis and dengue fever cases are registered annually.An expansion of the territory with registered epidemic manifestations of CCHF and WNF was noted, reflecting an increase in the area of circulation of their pathogens. An expansion of CCHF and WNF epidemic season with the involvement into the epidemic process of people from all age groups including young children was observed. Significant increase in number of imported cases of dengue fever was documented. Markers of tick-borne viral encephalitis, Batai, Inko, Sindbis, and Tyaginya fevers were detected in residents of a number of territories. A high levels of population humoral immunity to West Nile, Batai, Inko, Sindbis Tyaginya, Ukuniemi, Bhanja, Dkhori viruses were identified in the Astrakhan region.Conclusion. The data obtained indicate the need for epidemiological surveillance both for arbovirus infections with a pronounced epidemiological and clinical manifestations, and for infections, the proportion of which in the structure of infectious pathology in southern Russia has not been sufficiently studied, but carrying a potential risk of spreading.

scholarly journals Results of the West Nile Fever Agent Monitoring in the Russian Federation in 2019 and the Forecast of Epidemic Situation Development in 2020

2020 ◽  
pp. 51-60 ◽  
Author(s):  
E. V. Putintseva ◽  
I. O. Alekseychik ◽  
S. N. Chesnokova ◽  
S. K. Udovichenko ◽  
N. V. Boroday ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Russian Federation ◽  
Climatic Conditions ◽  
European Part ◽  
West Nile Fever ◽  
The West ◽  
West Nile ◽  
Volgograd Region ◽  
European Part Of Russia ◽  
The Russian Federation

The trend towards an increase in the West Nile fever incidence among the population in the Russian Federation, recorded in the season of 2018, continued and led to a significant increase in the incidence in 2019 (the indicator was 2 times higher than the long-term average). The features of manifestations of the epidemiological process of WNF in 2019 were identified: early registration of cases of the disease, activation of natural and natural-anthropourgic foci in the Southern Federal District (90 % of the total incidence in the Russian Federation), an increase in the share of neuro-invasive forms, dominance of patients aged 50 and older in the structure of the incidence, late epidemic season ending. It was established that in the season of 2019, the lineage 2 of WNV circulated in the European part of Russia. In the Volgograd Region, simultaneous presence of the West Nile virus and Sindbis virus in mosquitoes Culex pipiens and Culex modestus was identified. It was shown that the most significant factors for predicting the epidemiological situation on West Nile fever in the Volgograd Region are the average seasonal summer air temperature and monthly average indicators of relative humidity in the spring and summer periods, and the average monthly air temperatures in the spring and summer in the Rostov Region. In the Astrakhan Region, a significant correlation dependence of the influence of the considered factors on the incidence of the population has not been established. The forecast of the development of epidemic situation in 2020 does not exclude a possible increase in the incidence in the territories of the European part of Russia, endemic for West Nile fever, and the occurrence of local outbreaks in individual constituent entities, if the complex of climatic conditions and social factors favorable for West Nile virus coincide.

scholarly journals Prognosis of Epidemiologic Situation of West Nile Fever in the Territory of the Russian Federation for 2010

2010 ◽  
pp. 14-17 ◽  
Author(s):  
E. V. Putintseva ◽  
V. P. Smelyanskiy ◽  
V. A. Antonov ◽  
A. V. Lipnitskiy ◽  
V. V. Alekseev
Keyword(s):  
West Nile Virus ◽  
Russian Federation ◽  
West Siberia ◽  
West Nile Fever ◽  
West Nile ◽  
The North ◽  
The Russian Federation ◽  
The Republic ◽  
Epidemic Development ◽  
Near Future

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.

scholarly journals Epizootiological Monitoring of Natural Focal Infections in the South of the European Part of the Russian Federation in 2017

2019 ◽  
pp. 45-49
Author(s):  
N. F. Vasilenko ◽  
O. V. Maletskaya ◽  
D. A. Prislegina ◽  
E. A. Manin ◽  
O. V. Semenko ◽  
...  
Keyword(s):  
Russian Federation ◽  
Q Fever ◽  
Hemorrhagic Fever ◽  
European Part ◽  
The South ◽  
Hemorrhagic Fever Virus ◽  
Granulocytic Anaplasmosis ◽  
Control Research ◽  
The Russian Federation ◽  
Human Monocytic Ehrlichiosis

Objective– analysis of epizootiological manifestations of natural focal infections in the territory of the south of the European part of the Russian Federation in 2017.Materials and methods. Statistical documentation data from the Rospotrebnadzor Administrations, Centers of Hygiene and Epidemiology in the constituent entities of the Russian Federation, and Plague Control Research Institutes and Stations were used. The information was processed using Microsoft Excel 2010 software.Results and discussion. Epizootiological survey for 19 nosological forms of natural focal infections in the territory of the south of the European part of the Russian Federation was conducted. The total of 70155 samples of field material was tested; markers of 14 pathogens of natural focal infections were identified. The circulation of Crimean-Congo hemorrhagic fever virus was revealed in 11 constituent entities, tularemia and Lyme borreliosis pathogens – in 8 entities, West Nile virus – in 7. Markers of leptospirosis, Q fever, human granulocytic anaplasmosis and human monocytic ehrlichiosis pathogens were detected in 6 constituent entities, markers of the agent of hemorrhagic fever with renal syndrome – in 5 entities; markers of intestinal yersiniosis pathogen – in 3 constituent entities of the Russian Federation, pathogens of tick spotted fevers group, tick-borne viral encephalitis and pseudotuberculosis – in 2. The circulation of the virus Sindbis was identified in the Rostov Region. 

scholarly journals Peculiarities of the Epidemic Situation on West Nile Fever in the Territory of the Russian Federation in 2018 and Forecast of its Development in 2019

2019 ◽  
pp. 17-25 ◽  
Author(s):  
I. O. Alekseychik ◽  
E. V. Putintseva ◽  
V. P. Smelyansky ◽  
N. V. Boroday ◽  
A. K. Alieva ◽  
...  
Keyword(s):  
Russian Federation ◽  
Incidence Rates ◽  
The European Union ◽  
West Nile Fever ◽  
West Nile ◽  
European Part Of Russia ◽  
Virus Genotypes ◽  
Federal Districts ◽  
The Usa ◽  
The Russian Federation

The epidemic rise in the incidence of West Nile fever (WNF) in the season of 2018 was observed in the countries of the European Union (EU) and bordering states and exceeded the values of all previously recorded epidemic rises of 2010–2012. An increase in the incidence rate was registered in the USA and Canada, however, it did not exceed the indicators of epidemic rises of 2007–2012. In the territory of the Russian Federation, the WNF epidemiological process became more intense mainly in the territory of the Southern and North Caucasian Federal Districts. In general, in Russia, the incidence rates were 2 times lower than the average annual rates, but significantly exceeded those of 2017. The epidemic process had a number of peculiarities in the seasonality, the structure of morbidity and the clinical manifestation of WNF. Genotyping of the isolated WNV RNA fragments from clinical and biological material showed that I, II and IV West Nile virus genotypes were circulating in the European part of Russia. Forecast of epidemic situation development in 2019 reveals further increase in the incidence and does not exclude the possibility of a significant localincrease of WNF incidence in certain regions of Russia. 

scholarly journals ASSESSMENT OF GREEN AREA IN THE TERRITORY OF THE REPUBLIC OF BASHKORTOSTAN

2021 ◽  
Vol 11 (1) ◽  
pp. 36-44
Author(s):  
Mariya Martynova
Keyword(s):  
Russian Federation ◽  
European Part ◽  
Forest Steppe ◽  
The South ◽  
Forest Park ◽  
Steppe Region ◽  
Republic Of Bashkortostan ◽  
Green Zone ◽  
The Russian Federation ◽  
The Republic

The results of assessing allocation, territorial distribution of green zones of the Republic of Bashkortostan are given and the standard area of the green zone of the republic's settlements is calculated. In the forest fund of the republic on an area of 300.29 thousand hectares, green zones have been allocated on the territory of 27 out of 31 forestry districts. The largest areas of green zones (thousand hectares) are allocated in Ufa (55.569, including forest park zone 3.280), Dyurtyulinsky (25.904), Sterlitamak (26.875, including forest park zone 4.873) and Yanaulsky (19.724, including forest park zone 0.809) forestry. The lack of green zones in Burzyansky, Karaidelsky, Nurimanovsky and Khaibullinsky forestries is explained by the priority of other categories of protective forests - valuable forests, forests located in water protection zones and in protected areas. Forest park zone is allocated in 19% of forestries. The area of green zones according to the State Standard should be 317.8 thousand hectares, according to the method of V.P. Kovtunov - S.V. Belov - 592.1 thousand hectares, in fact, it is 231.8 hectares. It is required to include 86.0 thousand hectares of forests in the green zone according to the GOST standard. It was determined that in the South Ural forest-steppe region there are 7.1 hectares of forest fund per inhabitant, in the Forest-steppe region - 1.1 hectares / person, in the area of coniferous-deciduous forests - 1.5 hectares / person. The area of the green zone of the cities of the Forest-steppe region of the European part of the Russian Federation is closest to the optimal one; in the Region of coniferous-broad-leaved forests of the European part of the Russian Federation, green zones exceed the norms for the areas of green zones both according to GOST and according to V.P. Kovtunov - S.V. Belov. Insufficient forest area of green zones is seen in the South Ural forest-steppe region

scholarly journals Scientific Conference of the Problem Commission “Arboviruses and other zoonoses viruses: Topical issues of the study of West Nile fever, dengue fever and other tropical imported arboviral infections in the Russian Federation”

2014 ◽  
Vol 19 (3) ◽  
pp. 58-61
Author(s):  
A. M Butenko
Keyword(s):  
Dengue Fever ◽  
Russian Federation ◽  
Federal State ◽  
Scientific Conference ◽  
West Nile Fever ◽  
West Nile ◽  
The Russian Federation

In the article there is presented a brief overview concerning proceedings of RAMS Problem Commission "Arboviruses and other zoonoses viruses" on the theme: "Actual issues of studying of West Nile fever, dengue fever and other tropical imported arboviral infections in the Russian Federation", which was held in Federal State Budgetary Institution "D. I. Ivanovsky Institute of Virology (Russian Federation, Moscow) on 16th of March, 2014.

scholarly journals Peculiarities of Epidemiological Situation on the West Nile Fever in the Russian Federation in 2020 and Forecast for Its Development in 2021

2021 ◽  
pp. 63-72
Author(s):  
E. V. Putintseva ◽  
S. K. Udovichenko ◽  
N. V. Boroday ◽  
D. N. Nikitin ◽  
A. А. Baturin ◽  
...  
Keyword(s):  
West Nile Virus ◽  
Russian Federation ◽  
Healthy Population ◽  
West Nile Fever ◽  
Molecular Genetic Study ◽  
The West ◽  
West Nile ◽  
Federal Districts ◽  
Lineage 2 ◽  
The Russian Federation

The paper presents an analysis of West Nile Fever incidence in the Russian Federation in 2020, summarizes the results and identifies problematic issues of the pathogen monitoring. Manifestations of West Nile Fever in 2020 were characterized by a low incidence rate (10 times lower than the average long-term value) with sporadic cases registration in the endemic areas of the Southern (9 cases) and Central (1 case) Federal Districts. A discrepancy between the morbidity structure (distribution by age, sex, social status) and the trends that have developed in Russia in recent years is shown. The analysis of officially recorded cases doesn’t characterize the epidemic process of West Nile fever in Russia during 2020-season as a whole. The generalized results of monitoring of the West Nile virus circulation in environmental objects in 2020 indicate a decrease in the effectiveness of its implementation and a low detectability of pathogen markers. A decrease in the volume of diagnostic studies for the active detection of patients with West Nile fever in the epidemic season (5.7 times lower compared to 2019), as well as serological screening of healthy population samples (1.6 times) has been established. The results of a molecular-genetic study of the pathogen showed that lineage 2 of the pathogen was circulating in the European part of Russia. The circulation of the lineage 4 of the virus in the enzootic cycle in the Republic of Kalmykia was found out. The genome sequences of 11 West Nile virus isolates allocated in 2019 and 2020 were obtained. Phylogenetic analysis revealed that all isolates allocated in the Volgograd Region and isolates from the Rostov and Astrakhan regions belong to the Volgograd clade of the lineage 2 of the West Nile virus. Based on the assessment of abiotic and biotic factors, possible local increases in the incidence of West Nile fever in 2021 in the regions of the Southern and North Caucasian Federal Districts and in the south of Western Siberia have been substantiated.

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