2013-2021年俄罗斯联邦及欧亚大陆邻近地区狂犬病发病率动态和趋势

O. Zaykova, M. A. Losich, E. Rusakova, O. Verkhovsky, A. Shabeykin, T. Grebennikova
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Despite the existing genetic and environmental differences, all types of lyssaviruses registered in the territory of the RF pose a threat to humans and animals. Due to the growing processes of interpenetration of the anthropogenic environment and wildlife, in recent years, rabies has been increasingly registered in domestic carnivores, which significantly increases epidemiological risks. Aim. A retrospective comparative analysis of data on the incidence of rabies in humans and animals in the RF and on the territory of some regions of Eurasia adjacent to the RF for the period from 2013 to 2021 to characterize the current manifestations of the epidemic (epizootic) process of rabies. Materials and methods. The materials for the study were data from epidemiological surveillance of rabies in the RF and data from veterinary statistics for 2013–2021. Conventional methods and computer programs were used for the analysis: Microsoft Office Excel analysis package, as well as an online statistical calculator. The level of reliability of the data obtained was evaluated using the Pearson consensus criterion χ2, with a reliability level of p = 0.05 and p = 0.01. Results. It is shown that, on average, 2312.33 ± 752.24 cases of rabies in animals were registered on the territory of the RF for the period 2013–2021. With the observed trend towards a gradual decrease in the annual incidence of rabies among animals, the share of dogs and cats in the epizootic process has increased by 7.,4 and 3,8%, respectively,  over the past 2 years. At the same time, an increase in the incidence of rabies in humans by 4,33 times was recorded when comparing indicators with the previous period 2018-2019. Russia in total for 2013-2021 ranks first in the number of officially registered cases of rabies in humans (63%) among the countries of Europe, the Caucasus, Transcaucasia and Central Asia.  The European part of the RF accounts for 41,7–44,3% of cases of rabies among domestic and farm animals and 46,7% among wild animals compared to these regions. The recorded trend towards a decrease in the number of cases of rabies in animals  can be explained by long-term oral vaccination of wild carnivores. But the decrease in the number of natural foci of the disease did not provoke a proportional decrease in the incidence of rabies in domestic animals. As a result, the proportion of dogs and cats in the morbidity structure has significantly increased, which, given their proximity to humans, ensures the maintenance of a high level of epidemiological risk. In the pan-European incidence of rabies, the RF is in second place after the countries of Eastern and Southern Europe. All reported cases of rabies in the RF are caused by the natural circulation of the «classic» rabies virus. In recent years, no lyssaviruses have been detected in bat populations on the territory of the RF, which contrasts with the high incidence of lyssaviruses in other European countries. The RF shares land borders with the countries of Europe, the Caucasus, Transcaucasia and Central Asia, at the same time, the territory of the RF has extensive areas of Eptesicus serotinus and Myotis daubentonii, which are biological reservoirs for EBLV-1, EBLV-2. Based on the above, the risk of the permanent presence of lyssaviruses in bat populations in the territory of the RF is very high and requires monitoring on a regular basis. Conclusion. The analysis of epidemiological and epizootological risks shows the need to adjust the ongoing preventive anti-rabies measures. It is necessary to intensify the campaign of anti-rabies vaccination of domestic carnivores, reduce the number of neglected animals, expand the program for oral vaccination of wild carnivores, monitor the prevalence of lyssaviruses in bat populations in the territory of the RF.","PeriodicalId":11736,"journal":{"name":"Epidemiology and Vaccinal Prevention","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dynamics and Trends in the Incidence of Rabies in the Russian Federation and some Adjacent Regions of Eurasia in 2013–2021\",\"authors\":\"O. Zaykova, M. A. Losich, E. Rusakova, O. Verkhovsky, A. Shabeykin, T. Grebennikova\",\"doi\":\"10.31631/2073-3046-2023-22-1-4-12\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Relevance. 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引用次数: 0

摘要

的相关性。狂犬病,恐水症是一种急性病毒性人畜共患神经感染,在人类或动物出现临床症状时死亡率为100%。在俄罗斯联邦(RF)境内,狂犬病病原体(Lyssa病毒,Rhabdo病毒科)的主要生物储存库和分发者是犬科的野生捕食者,负责经典狂犬病病毒(狂犬病毒)的传播。此外,在RF领土以及东欧、小亚细亚和中亚国家,已经确定了另外6种溶血病毒属病毒的传播,这些病毒在蝙蝠种群中具有生物保留。尽管存在遗传和环境差异,但在RF领土上登记的所有类型的溶血病毒都对人类和动物构成威胁。近年来,由于人类活动环境与野生动物相互渗透的过程不断加深,家养食肉动物中狂犬病的病例越来越多,这大大增加了流行病学风险。的目标。对2013年至2021年期间俄罗斯联邦和与俄罗斯联邦相邻的欧亚大陆一些地区境内人类和动物狂犬病发病率数据进行回顾性比较分析,以确定目前狂犬病流行(动物流行病)过程的表现特征。材料和方法。本研究的资料来自2013-2021年RF狂犬病流行病学监测数据和兽医统计数据。使用常规方法和计算机程序进行分析:Microsoft Office Excel分析包,以及在线统计计算器。采用Pearson共识标准χ2评价所得资料的信度水平,信度水平分别为p = 0.05和p = 0.01。结果。结果表明,2013-2021年,在RF境内平均登记动物狂犬病病例为2312.33±752.24例。随着观察到的动物狂犬病年发病率逐渐下降的趋势,狗和猫在动物流行病过程中的份额增加了7%。在过去两年,分别上升了4%和3.8%。与此同时,与2018-2019年同期相比,人类狂犬病发病率增加了4.33倍。2013-2021年期间,俄罗斯在欧洲、高加索、外高加索和中亚国家中正式登记的人类狂犬病病例总数(63%)居首位。与这些地区相比,RF的欧洲部分占家养和农场动物狂犬病病例的41.7 - 44.3%,占野生动物狂犬病病例的46.7%。记录在案的动物狂犬病病例数呈下降趋势,这可以用长期口服野生食肉动物疫苗来解释。但是,疾病自然疫源地数量的减少并没有引起家畜狂犬病发病率的成比例下降。因此,狗和猫在发病结构中的比例显著增加,鉴于它们与人类接近,这确保了流行病学风险的高度维持。在泛欧狂犬病发病率中,RF在东欧和南欧国家之后排名第二。RF中所有报告的狂犬病病例都是由“经典”狂犬病病毒的自然循环引起的。近年来,在RF领土上的蝙蝠种群中未检测到溶血病毒,这与其他欧洲国家溶血病毒的高发病率形成对比。该地区与欧洲、高加索、外高加索和中亚等国家接壤,同时,该地区境内有广泛的sertinus Eptesicus和Myotis daubentonii,它们是EBLV-1和EBLV-2的生物宿主。基于上述情况,在RF领土内的蝙蝠种群中永久存在溶血病毒的风险非常高,需要定期监测。结论。对流行病学和流行病学风险的分析表明,需要调整正在实施的预防性抗狂犬病措施。应加强家养食肉动物的抗狂犬病疫苗接种,减少被忽视的动物数量,扩大野生食肉动物口服疫苗接种规划,监测RF境内蝙蝠种群中狂犬病毒的流行情况。
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Dynamics and Trends in the Incidence of Rabies in the Russian Federation and some Adjacent Regions of Eurasia in 2013–2021
Relevance. Rabies, hydrophobia is an acute viral zoonotic neuroinfection with 100% mortality in the case of clinical signs in humans or animals. The main biological reservoirs and distributors of the rabies pathogen (Lyssa virus, Rhabdo viridae) on the territory of the Russian Federation (RF) are wild predators of the canine family responsible for the circulation of the classic rabies virus (Rabies virus). Also on the territory of the RF and the countries of Eastern Europe, Asia Minor and Central Asia, the circulation of 6 more species of viruses of the genus Lyssavirus, with biological reservation in bat populations, has been established. Despite the existing genetic and environmental differences, all types of lyssaviruses registered in the territory of the RF pose a threat to humans and animals. Due to the growing processes of interpenetration of the anthropogenic environment and wildlife, in recent years, rabies has been increasingly registered in domestic carnivores, which significantly increases epidemiological risks. Aim. A retrospective comparative analysis of data on the incidence of rabies in humans and animals in the RF and on the territory of some regions of Eurasia adjacent to the RF for the period from 2013 to 2021 to characterize the current manifestations of the epidemic (epizootic) process of rabies. Materials and methods. The materials for the study were data from epidemiological surveillance of rabies in the RF and data from veterinary statistics for 2013–2021. Conventional methods and computer programs were used for the analysis: Microsoft Office Excel analysis package, as well as an online statistical calculator. The level of reliability of the data obtained was evaluated using the Pearson consensus criterion χ2, with a reliability level of p = 0.05 and p = 0.01. Results. It is shown that, on average, 2312.33 ± 752.24 cases of rabies in animals were registered on the territory of the RF for the period 2013–2021. With the observed trend towards a gradual decrease in the annual incidence of rabies among animals, the share of dogs and cats in the epizootic process has increased by 7.,4 and 3,8%, respectively,  over the past 2 years. At the same time, an increase in the incidence of rabies in humans by 4,33 times was recorded when comparing indicators with the previous period 2018-2019. Russia in total for 2013-2021 ranks first in the number of officially registered cases of rabies in humans (63%) among the countries of Europe, the Caucasus, Transcaucasia and Central Asia.  The European part of the RF accounts for 41,7–44,3% of cases of rabies among domestic and farm animals and 46,7% among wild animals compared to these regions. The recorded trend towards a decrease in the number of cases of rabies in animals  can be explained by long-term oral vaccination of wild carnivores. But the decrease in the number of natural foci of the disease did not provoke a proportional decrease in the incidence of rabies in domestic animals. As a result, the proportion of dogs and cats in the morbidity structure has significantly increased, which, given their proximity to humans, ensures the maintenance of a high level of epidemiological risk. In the pan-European incidence of rabies, the RF is in second place after the countries of Eastern and Southern Europe. All reported cases of rabies in the RF are caused by the natural circulation of the «classic» rabies virus. In recent years, no lyssaviruses have been detected in bat populations on the territory of the RF, which contrasts with the high incidence of lyssaviruses in other European countries. The RF shares land borders with the countries of Europe, the Caucasus, Transcaucasia and Central Asia, at the same time, the territory of the RF has extensive areas of Eptesicus serotinus and Myotis daubentonii, which are biological reservoirs for EBLV-1, EBLV-2. Based on the above, the risk of the permanent presence of lyssaviruses in bat populations in the territory of the RF is very high and requires monitoring on a regular basis. Conclusion. The analysis of epidemiological and epizootological risks shows the need to adjust the ongoing preventive anti-rabies measures. It is necessary to intensify the campaign of anti-rabies vaccination of domestic carnivores, reduce the number of neglected animals, expand the program for oral vaccination of wild carnivores, monitor the prevalence of lyssaviruses in bat populations in the territory of the RF.
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