Search

Background. Dirofilariasis is a vector-borne helminthiasis that tends to expand spatial boundaries in areas with temperate and cold climates. In the Voronezh oblast, located in the Central Black Earth Region of the Russian Federation there were previously isolated reports of cases of dirofilariasis in humans and dogs, but this issue was not specifically studied.Aims. To determine the degree of infection of dogs with Dirofilaria immitis and Dirofilaria repens in the Voronezh oblast in order to determine the level of epidemiological risk.Materials and methods. For seven years, targeted work was carried out to study the spread of different types of dirofilariae in dogs in the Voronezh region. Blood from 3 498 dogs of different breeds, ages, conditions of keeping and household use was examined. Dirofilaria larvae were counted using the Fuchs-Rosenthal camera. The type of dirofilaria larvae isolated from the blood of dogs was determined by the histochemical method. The antigen of the imaginal form of D. immitis was detected using a chromatographic test system the ImmunoRun Antigen Detection Kit Caninae Heartworm Biogal chromatographic test system (Israel). Statistical processing of the material was carried out in the Microsoft Excel 2010 program. Studies were carried out with the consent of animal owners and in accordance with the European Convention for the Protection of Vertebral Animals used for experimental and other scientific purposes (Strasbourg, 1986).Results. As a result of the conducted studies, it was found that in the Voronezh oblast, the average infection of domestic dogs (Canis familiaris) with dirofilariasis is 14.14 ± 0.31 %. The indicator depends on the conditions of keeping animals and makes 27.15 % in stray dogs, 25.26 % – in service dogs and 10.54 % – in apartment dogs. In service dogs, the species D. repens occurs in 52.39 % of cases, D. immitis – in 42.95 %, mixtinvasia – in 4.80 % of cases. In stray dogs, the species D. repens prevails (80.10 %). The second type of D. immitis was established in 10.0 % of cases. At the same time, both types were also established in 10.0 % of cases. The maximum number of cases of dirofilariasis occurs in urban dogs (65.87 %), which is due to the high density of their population and close contact with the vector of transmission in urbanized areas. The seasonal dynamics of infestation is determined by the year-round detection of cases with a peak in October (46.77 %). The number of cases of dirofilariasis increases with age, in dogs from one to six years old it reaches maximum of 63.26 %. There is an epidemiological risk of dirofilariasis in the Voronezh oblast. This is due to the existence and active functioning of synanthropic and natural foci of invasion on the territory of the Voronezh oblast.

This work is devoted to the assessment of the vulnerability of the Sary-Jaz autonomous focus of plague by using of GIS technologies. This focus of the plague covers a very large and difficult to access territory. The annual survey and disarming of this territory is very expensive. Therefore, it is necessary to select sectors that need more attention. That why, it is necessary to assess the vulnerability of the population in various sectors. Now in the world literature there is a lot of work on the assessment of vulnerability from these or those dangers, but there is no definition of hazard, risk and vulnerability indices for the focus of plague. The paper presents the results of the determination of these indices and calculates indices for each sector of the natural focus of the plague. As a result of the work, the final map of the Index of the epidemiological vulnerability of the Sary-Jaz autonomous focus of the plague was obtained. Detail results of the assessment and the final map for the study area are given. The authors hope that the calculations and results obtained in the course of this work will find their application both for theoretical assessments of the vulnerability of various territories from plague and for practical actions to reduce vulnerability.

The purpose of this study was to determine priority directions of anti-epidemic readiness of the Russian Federation Region for emergency situations associated with infectious diseases dangerous for humans, at the present stage. Readiness of the Russian Federation region for emergency situations associated with infectious diseases dangerous for humans (anti-epidemic readiness) implies a set of preventive and anti-epidemic measures, implementation of relevant management decisions at the Regional level, which aim to ensure the safety of people living (temporarily located) in conditions of epidemiological risks. Anti-epidemic readiness is provided through targeted distribution of logistics, human resources, scientific methods, and informational resources of public health of the region, taking into account the priority of the organization of preventive measures especially for those infectious diseases that define dominant epidemiological risk in a particular municipality. Efficient use of resources is not possible without administrative, legal and financial support. As the result of the research priority directions of anti-epidemic readiness of the Russian Federation region for emergency situations associated with infectious diseases dangerousfor humans, taking into account the dominant epidemiological risks, are formulated.

In the last decade outbreaks and epidemics of infectious diseases dangerous for humans cause tension epidemiological situation in the world and in the Russian Federation. Epidemic manifestation of these diseases has symptoms of emergency situations and requires the use of additional forces and means of Public Health, as well as administrative, legal and financial support. The purpose of this study is formulation of the concept of "public health emergency situations associated with diseases dangerous for humans". In considering of definitions "emergency situation", "disease" and "event" in international and national law, the thesis is confirmed that epidemic manifestation of infectious diseases dangerous for humans, are signs of an emergency. In addition, the interpretation of these terms focuses on the distinction between potential risk and its actual implementation. Consequently, the threat of public health emergency situations should be viewed from the risk methodology, by which we proposed to evaluate internal and external epidemiological risks and to define its dominance for each municipality of the Russian Federation Region. Infectious diseases dangerous for humans which able to cause public health emergency situations, can be divided into three groups. 1. Diseases that form the external epidemiological risk - dangerous infectious diseases requiring measures for sanitary protection of the territory of the Russian Federation. 2. Diseases that form the internal epidemiological risk - dangerous infectious diseases, registration both single and mass indigenous events requires emergency response and using of additional forces and means of public health of the Region. 3. Infectious diseases of importance in regional pathology, prevention of which is to implement long-term programs. In the framework of this paper the definition of "public health emergency situations associated with diseases dangerous for humans" is proposed. It focuses on the feasibility of upgrading approaches to priority directions of anti-epidemic readiness of the Russian Federation Region, taking into account the probability of epidemiological risks.

Emergency situations associated with infectious diseases dangerous for humans are actual for the Russian Federation. The probability of the occurrence of these events varies for different Russian Federation regions, but also for the individual municipalities of one region. Complex approach to the organization of anti-epidemic readiness for such situations is necessary. This approach should be based on differentiation of municipalities of a Russian Federation region according to the estimation of external and internal epidemiological risks associated. with diseases dangerous for humans. At the federal level the system of epidemiological surveillance is determined for diseases requiring measures for sanitary protection of the territory, and separately for almost every infectious disease, affecting the sanitary-epidemiological welfare of the population of the Russian Federation. In the frames of this study it is offered to consider the probability of the importation of infectious diseases, requiring measures for sanitary protection of the territory, as the external epidemiological risk. Diseases common to man and. animals, other endemic to the Russia infectious diseases, including relevant in regional pathology, are viewed as the potential and real internal epidemiological risk. The purpose of this study is the development of the control system of these epidemiological risks at the Municipal level. The three-level control system of the epidemiological risks according to differentiation of municipalities of a Russian Federation region by criteria of external and. internal epidemiological risks is proposed as a result of this work. The control system allows suggesting a priority orientation of organizational, preventive and anti-epidemic actions in municipalities and. promotes rational distribution of forces and means of Public Health Institutions in cases of emergency situations in the field of sanitary-epidemiological welfare associated with diseases dangerous for humans.

The risk of emergency situations in the sphere of sanitary-epidemiological welfare associated with diseases dangerous for population varies for different municipalities of a region of Russian Federation. Therefore a differentiation of a region for three types of territories (A, B, C) is necessary. Adequate number of sanitary protection measures is determined for each type of territories. The purpose of this study was the development of methodical reception for differentiation of a region of Russian Federation. Point scoping of criteria of external and. internal epidemiological risks for each of municipality is proposed as this method. Criteria of external epidemiological risk allow to take into account the probability of the importation of infectious diseases, requiring measures for sanitary protection of the territory. Criteria of internal epidemiological risk reflect both actual and. potential dangers: morbidity, the registration of particular nosologic forms of diseases in animals and. detection of pathogens in the living and. non-living environment objects. Assessment of internal risk is carried out in the analysis of information about epizootic and. epidemiological situation of infectious diseases, the list of which is proposed, with, consideration of their epidemiological significance and. can be used for any Russian Federation region. According to the results of total assessment of risks for each of municipalities the complex index of epidemiological risk (CIER) is determined. On the basis of CIER the territory type (A, B, C) is determined. Type A, B or C defines for the municipality the volume of measures for sanitary protection of the territory on the basis of a sufficient level for preparedness of forces and means of public health institutions. The method, based, on the assessment of external and. internal epidemiological risks, that allows to differentiate the region of Russian Federation, at municipal level for risk of diseases dangerous for people, is proposed, as the result of this work. A new methodical approach, will contribute to the increase of the preparedness of public health, institutions to emergency situations in the sphere of sanitary-epidemiological welfare associated, with, diseases dangerous for people.