2022年西尼罗热在俄罗斯联邦,2023年发病率预测

Q3 Medicine
E. Putintseva, S. K. Udovichenko, D. Nikitin, N. Boroday, A. Baturin, A. Y. Machneva, A. Antonov, N. A. Zarubin, A. Toporkov
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引用次数: 0

摘要

本文对俄罗斯联邦2022年西尼罗热流行病学情况进行了分析,并对病原体监测结果进行了总结。下面概述了世界自然基金会在俄罗斯流行过程中的以下特点:与长期平均值相比,发病率下降了(4倍),但表现形式极为广泛(6个联邦区的16个组成实体),包括在5个新领土(特维尔、坦波夫、弗拉基米尔地区、汉特-曼西自治区和卡拉恰伊-切尔克斯共和国)发现了当地病例,在中央联邦区登记了主要的发病率(51%),流行病季节提前开始和结束。在发病率结构、女性患病率和" 60岁及以上"年龄组中,神经侵入性形式的比例有所下降,在城市居住地受感染的人的比率也有所下降,这与病例检测的特殊性有关,即通过参考中心的努力对医院的发热病人进行筛查检查。根据结果,俄罗斯所有登记的WNF患者中有60%被诊断出来。参考中心在中高加索、南高加索和北高加索联邦区境内进行的监测研究证实了该病原体的密集传播。官方登记的发病率低是由于对患者的识别不够有效。分子遗传学研究表明,西尼罗河病毒谱系2在俄罗斯的欧洲部分传播,包括动物流行病和流行周期。系统发育分析显示,2022年在阿斯特拉罕、伏尔加格勒地区、卡尔梅克共和国和斯塔夫罗波尔地区发现的4株西尼罗河病毒分离株属于2021年在俄罗斯首次发现的基因型2的一种新的基因变异体。预计俄罗斯欧洲部分中部和南部所有联邦区的流行病学情况可能复杂化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
West Nile Fever in the Russian Federation in 2022, the Incidence Forecast for 2023
The review presents an analysis of West Nile fever (WNF) epidemiological situation in the Russian Federation in 2022 and the summarized results of monitoring over the pathogen. The following features of the WNF epidemic process in Russia are outlined: the decrease (by 4 times) in the incidence rates compared to the long-term average values against an extremely extensive nature of manifestations (16 constituent entities in 6 federal districts), including the detection of local cases in 5 new territories (Tver, Tambov, Vladimir Regions, Khanty-Mansi Autonomous District, and Karachay-Cherkess Republic), predominant registration of incidence in the Central Federal District (51 %), early start and termination of the epidemic season. There is a decrease in the proportion of neuroinvasive forms in the structure of incidence, prevalence of females and the age group of “60 years and over”, as well as record rate values of people infected at the place of residence in cities, which is associated with the peculiarities of case detection, namely, screening examinations of febrile patients in hospitals by efforts of the Reference Center, according to the results of which 60 % of all registered patients with WNF in Russia were diagnosed. Monitoring studies of the Reference Center in the territory of the Central, Southern and North-Caucasian Federal Districts confirmed the intensive circulation of the pathogen. The low level of officially registered incidence is caused by insufficiently effective identification of patients. Molecular genetic studies have shown that West Nile virus lineage 2 circulated in the European part of Russia, both in epizootic and epidemic cycles. Phylogenetic analysis has revealed that 4 West Nile virus isolates found in Astrakhan, Volgograd Regions, the Republic of Kalmykia and Stavropol Territory in 2022 belong to a new genovariant of the genotype 2, first identified in Russia in 2021. Possible complication of the epidemiological situation in all federal districts of the center and south of the European part of Russia is predicted.
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来源期刊
Problemy Osobo Opasnykh Infektsii
Problemy Osobo Opasnykh Infektsii Medicine-Infectious Diseases
CiteScore
1.90
自引率
0.00%
发文量
79
审稿时长
12 weeks
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