Bouchemla Fayssal, Agoltsov Valerey Alexandrovich, Popova Olga Mikhailovna, Padilo Larisa Pavlovna
Department of Animal Disease, Veterinarian and Sanitarian Expertise, Faculty of Veterinary Medicine, Vavilov Saratov State Agrarian University, Saratov, Russia.
Department of Food Technology, Faculty of Veterinary Medicine, Vavilov Saratov State Agrarian University, Saratov, Russia.
Vet World. 2018 May;11(5):612-619. doi: 10.14202/vetworld.2018.612-619. Epub 2018 May 13.
This study focuses on the spatial dynamic associated with the spreading of the peste des petits ruminants (PPR) disease for the past decade (from the year 2007 to 2017), assesses the resulting situation in the world, and has an emphasis on Russian advantages been a PPR host.
Outbreaks were confirmed and reported officially by the World Organization for Animal Health (enzyme-linked immunosorbent assay and polymerase chain reaction were used). Data contain the account number of infected, dead, and all susceptible animals in focus of infection in the period of 2007-2017. Once conventional statistical population was defined, a model was installed. Geo-information system QuickMAP was used to clear up the map disease, and through the Risk program, we got our forecasting value of future situations (by Monte Carlo method).
The spatial study of PPR's occurrence and its spread was mapping according to the incidence of cases and outbreaks. Clusters demonstrated risk levels in the world in the period from 2007 to 2017 year. Based on the epizootological analysis, an assessment of PPR risk and the probability movement of infection in Russia from nearby disadvantaged countries had been carried out. A statistically significant impact of the socioeconomic system on the stationarity index was found equal to 0.63. The PPR risk of spreading could not be ignored. Nevertheless, conducting effective large-scale vaccine companies in a complex of antiepizootic activities against PPR could reduce the risk of spread of the disease up to 91.8%.
Despite all mentioned facts above, the PPR probability can only be reduced by coordinating work of border veterinary services, as in disadvantaged as in free from this disease country, that is, what makes an effective and complete eradication of the disease could be quite realistic.
本研究聚焦过去十年(2007年至2017年)小反刍兽疫(PPR)疾病传播的空间动态,评估全球范围内的疫情形势,并着重分析俄罗斯作为PPR宿主国的情况。
疫情由世界动物卫生组织官方确认并报告(采用酶联免疫吸附测定和聚合酶链反应)。数据包含2007 - 2017年期间感染、死亡及所有受感染地区易感动物的数量。确定常规统计种群后,建立模型。使用地理信息系统QuickMAP绘制疾病地图,并通过Risk程序(采用蒙特卡罗方法)得出未来形势的预测值。
根据病例和疫情的发生率绘制PPR发生及传播的空间研究图。聚类分析显示了2007年至2017年期间全球的风险水平。基于流行病学分析,对俄罗斯PPR风险以及来自周边疫情严重国家的感染传播可能性进行了评估。发现社会经济系统对平稳性指数有统计学显著影响,其值为0.63。PPR传播风险不容忽视。然而,在针对PPR的一系列防兽疫活动中开展有效的大规模疫苗接种可将疾病传播风险降低多达91.8%。
尽管有上述所有情况,但只有通过边境兽医服务部门的协同工作,无论是在疫情严重国家还是无疫情国家,才能降低PPR发生的可能性,也就是说,实现疾病的有效彻底根除是相当现实的。