scholarly journals Effect of the natural and climatic factors on epidemiological situation related to natural focal infections

2021 ◽  
Vol 11 (5) ◽  
pp. 820-836
Author(s):  
D. A. Prislegina ◽  
V. M. Dubyanskiy ◽  
A. E. Platonov ◽  
O. V. Maletskaya
Keyword(s):  
Russian Federation ◽  
Vegetation Index ◽  
Climatic Factors ◽  
Abiotic Factors ◽  
Hemorrhagic Fever ◽  
West Nile Fever ◽  
Crimean Congo Hemorrhagic Fever ◽  
Epidemic Process ◽  
The Russian Federation ◽  
Epidemiological Situation

This article is dedicated to the analysis and generalization of the Russian and foreign research results on natural and climatic factors effect on the intensity of epidemic process manifestations and the natural focal infections pathogens vectors vital activity which are the most widespread in the Russian Federation. Over the past seven years tick-borne infections have been accounting for more than 50 per cent in the natural focal diseases general nosological structure. Among the diseases of this group Lyme borreliosis leads in prevalence and frequency of cases identification. Tick-borne viral encephalitis is still a serious danger for national health. Crimean-Congo hemorrhagic fever epidemiological situation remains unfavorable in the south of the European part of Russia. In addition to the annual patients identification, the demonstrable trend of shifting and expansion of the pathogen’s area in a northerly direction was established. It creates a risk for the spread of the Crimean-Congo hemorrhagic fever virus outside the southern regions of the country. High incidence of the dangerous vector-borne infection — West Nile fever — with the involvement of new subjects in the epidemic process and the emergence of local cases of infection in previously non-endemic territories is registered. Expansion of hemorrhagic fever with renal syndrome natural foci borders, which is the most widespread natural focal zoonosis of viral etiology in the Russian Federation and is the second by the frequency of patients identification after tick-borne infections, is noted. Research data for the dependence of the carriers pathogens number and the dynamics of the natural focal infections incidence on the values of climatic factors, confirmed using various methods of mathematical statistics (time-series analysis, autoregression integrated moving average, logistic regression, correlation analysis, one-way analysis of variance and other) were systematized. It was found that the temperature and humidity of the air and soil, the amount of precipitation, the height of the snow cover are the common abiotic factors for all of investigated infections. The values of these factors can be used for the subsequent epidemiological forecast. The further study of relationship between the incidence rate of the population, the number of arthropod vectors and small mammals with indicators of soil moisture and temperature at different depths, hydrothermal coefficient, normalized relative vegetation index, accumulated values of temperature and precipitation, as well as similar studies on other actual natural focal infections in the Russian Federation will be very promising.

scholarly journals Epidemiological Situation on Crimean-Congo Hemorrhagic Fever in the Russian Federation in 2019 and Forecast for 2020

2020 ◽  
pp. 14-20
Author(s):  
A. S. Volynkina ◽  
E. S. Kotenev ◽  
O. V. Maletskaya ◽  
O. N. Skudareva ◽  
L. I. Shaposhnikova ◽  
...  
Keyword(s):  
Russian Federation ◽  
Hemorrhagic Fever ◽  
The South ◽  
Natural Focus ◽  
Crimean Congo Hemorrhagic Fever ◽  
Cchf Virus ◽  
European Part Of Russia ◽  
Federal Districts ◽  
The Russian Federation ◽  
Epidemiological Situation

The review presents an analysis of epidemic and epizootic situation of Crimean-Congo hemorrhagic fever in the Russian Federation in 2010–2019, summarizes the results of epizootiological monitoring of the CCHF natural focus territory in the south of European part of Russia. An unfavorable epidemiological situation regarding CCHF is maintained in the Russian Federation. In 2010–2019, 999 CCHF cases were registered in nine regions of Southern and North-Caucasian Federal Districts. In 2019, an increase in the CCHF incidence level in the entities of the SFD and NCFD was observed as compared to 2017–2018. The expansion of the territory with registered epidemic manifestations of CCHF continues. In 2010–2019, the number of imago and pre-imaginal phases of Hyalomma marginatum – the main vector of the CCHF virus in Russia, remained consistently high. High numbers of H. marginatum ticks and their CCHFV infection rates can contribute to the development of an unfavorable epidemiological situation in the south of the Russian Federation with a possible increase in the CCHF incidence in 2020.

scholarly journals Epidemiological Situation of Crimean-Congo Hemorrhagic Fever (CCHF) in the South of Russia in 2010 and Prognosis for the Year of 2011

2011 ◽  
pp. 13-15 ◽  
Author(s):  
N. F. Vasilenko ◽  
O. V. Maletskaya ◽  
Yu. M. Tokhov ◽  
N. G. Varfolomeeva ◽  
O. A. Kireitseva ◽  
...  
Keyword(s):  
Russian Federation ◽  
Hemorrhagic Fever ◽  
The South ◽  
Crimean Congo Hemorrhagic Fever ◽  
Federal Districts ◽  
Stavropol Region ◽  
The Russian Federation ◽  
Epidemiological Situation

Presented are the data on Crimean hemorrhagic fever epidemiological situation and morbidity in the South and North-Caucasian Federal Districts of the Russian Federation in 2010. Epizootic situation in the Stavropol region has been analyzed. The prognosis as regards CHF for the year of 2011 in the territory of the South and North-Caucasian Federal Districts is presented, based on epizootiological monitoring .

scholarly journals Review of the Current Epidemiological Situation on the Incidence of Hemorrhagic Fever with Renal Syndrome in the World and Forecast of the Incidence for the Territory of the Russian Federation in 2019

2019 ◽  
pp. 30-36 ◽  
Author(s):  
T. A. Savitskaya ◽  
V. A. Trifonov ◽  
G. Sh. Isaeva ◽  
I. D. Reshetnikova ◽  
N. D. Pakskina ◽  
...  
Keyword(s):  
Russian Federation ◽  
Hemorrhagic Fever ◽  
Federal District ◽  
Incidence Rates ◽  
Downward Trend ◽  
Average Level ◽  
The World ◽  
The Russian Federation ◽  
Autonomous Regions ◽  
Epidemiological Situation

The paper presents analysis of epidemiological situation on hemorrhagic fever with renal syndrome around the world and in the Russian Federation over the period of 2009–2018. 5855 cases of hemorrhagic fever with renal syndrome were registered in Russia in 2018 (3.99 per one hundred thousand of the population). Downward trend is observed as compared to 2017 (by 29.6 %). Cases of cluster infection were not reported. It is established that the highest level of morbidity, exceeding the average level across Russia 3.9 times, was noted in the Volga Federal District, where 77.5% of the total cases occurred. The territory of the Russian Federation was differentiated by the HFRS incidence rates. The areas with high levels of morbidity included the entities of the Russian Federation with intensive index range between 9.08 and 41.39 per one hundred thousand of the population, among them Republics of Bashkortostan, Mari El, Tatarstan, and Mordovia, Udmurt and Chuvashi Republics, Kirov, Nizhny Novgorod, Penza, Samara, Ulyanovsk, Kostroma, Yaroslavl, and Jewish Autonomous Regions. The forecast for preservation of tense epidemiological situation on HFRS incidence in the territory of the Volga Federal District was substantiated.

scholarly journals EPIDEMIOLOGICAL SITUATION ON CRIMEAN HEMORRHAGIC FEVER IN THE RUSSIAN FEDERATION IN 2016, AND PROGNOSIS FOR 2017

2017 ◽  
pp. 24-28
Author(s):  
A. S. Volynkina ◽  
E. S. Kotenev ◽  
Ya. V. Lisitskaya ◽  
O. V. Maletskaya ◽  
L. I. Shaposhnikova ◽  
...  
Keyword(s):  
Russian Federation ◽  
Hemorrhagic Fever ◽  
The Russian Federation ◽  
Epidemiological Situation

scholarly journals PROBLEMS IN THE ORGANIZATION OF EPIDEMIC SURVEILLANCE OF LEPTOSPIROSIS IN A SUBJECT OF THE RUSSIAN FEDERATION

2012 ◽  
Vol 17 (1) ◽  
pp. 46-48
Author(s):  
A. A. Nafeyev
Keyword(s):  
Infectious Diseases ◽  
Russian Federation ◽  
Climatic Factors ◽  
Laboratory Diagnosis ◽  
Natural Focus ◽  
Epidemic Process ◽  
Natural Foci ◽  
The Russian Federation ◽  
Active Natural

This paper characterizes the epidemic process of leptospirosis. The current new herd infections are typified by: 1) the formation of new natural foci under anthropogenic and climatic factors; 2) the change in the biocenotic structure of natural foci; 3) the formation of natural foci of mixed infectious diseases of bacterial and virus etiology; 4) the change in the epidemic potential of natural foci; 5) synathropization of infectious diseases. Few or no registered leptospirosis cases in some silent areas are frequently attributable to poor differential, including laboratory, diagnosis. The epidemic process is characterized in terms of the active natural focus of leptospirosis in a long-term period.

scholarly journals Epidemiological Situation and Prognostication of the West Nile Fever Morbidity in the Territory of the Russian Federation

2008 ◽  
pp. 10-12 ◽  
Author(s):  
D. K. L’vov ◽  
S. T. Savchenko ◽  
V. V. Alekseev ◽  
A. V. Lipnitsky ◽  
T. P. Pashanina
Keyword(s):  
Russian Federation ◽  
Fever Virus ◽  
Virus Population ◽  
West Nile Fever ◽  
The West ◽  
West Nile ◽  
Epidemic Period ◽  
The Russian Federation ◽  
Epidemiological Situation

The questions of spreading of West Nile fever in the territory of theRussian Federationand abroad are considered. The information on the main carriers and vectors of this infection and their interaction with virus population is presented. The tendency of spreading of the West Nile fever virus in theRussian Federationand the possibilities of its maintenance during the inter-epidemic period are shown. Recommendations are given on the organization of serologic monitoring ofWest Nilefever in natural and anthropurgic biocenoses.

Sign in / Sign up

Export Citation Format

Share Document