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Exotic Pinus radiata Plantations do not Increase Andes Hantavirus Prevalence in Rodents.
EcoHealth ( IF 2.5 ) Pub Date : 2019-10-25 , DOI: 10.1007/s10393-019-01443-1
André V Rubio 1 , Fernando Fredes 2 , Javier A Simonetti 3
Affiliation  

Andes south virus (ANDV) is the etiologic agent of hantavirus cardiopulmonary syndrome (HCPS) in Chile and southern Argentina. Farm and forestry workers have been identified as a group at high risk of acquiring HCPS caused by ANDV due to their close exposure to rodents or their secretions in rural areas. Therefore, investigation on the effect of landscape composition on ANDV in wild rodents becomes relevant for disease prevention and control. In this study, we analyzed the influence of Monterey pine (Pinus radiata) plantations, an important monoculture in the global forest industry, on small mammal assemblage and on ANDV seroprevalence and abundance of seropositive rodents from central Chile. Small mammals were sampled seasonally during 2 years in native forests, adult pine plantations and young pine plantations. A total of 1630 samples from seven rodent species were analyzed for antibody detection. ANDV seroprevalence and abundance of seropositive rodents were significantly higher in the native forest compared to pine plantations. Furthermore, Monterey pine plantations decrease the abundance and relative abundance of Oligoryzomys longicaudatus (the principal reservoir of ANDV) and do not change sex ratio and distribution of age classes of this rodent species, which are variables that are important for ANDV transmission. Our findings indicate that Monterey pine plantations would not pose a higher risk of human exposure to ANDV compared to the temperate native forest. Our results can be useful for hantavirus risks assessment in human-dominated areas where ANDV is endemic.

中文翻译:

外来辐射松人工林不会增加啮齿动物中安第斯山脉汉坦病毒的流行。

安第斯山脉南部病毒(ANDV)是汉坦病毒心肺综合征(HCPS)在智利和阿根廷南部的病原体。由于在农村地区与啮齿动物或它们的分泌物密切接触,农林工人被确定为由ANDV引起的HCPS高风险人群。因此,研究景观成分对野生啮齿动物ANDV的影响对于疾病的预防和控制具有重要意义。在这项研究中,我们分析了蒙特雷松(辐射松)的影响。)人工林,这是全球森林工业中重要的单一文化,涉及小型哺乳动物种群以及来自智利中部的ANDV血清阳性和啮齿动物的大量繁殖。在2年内,按季节在本地森林,成年松林和幼林中对小型哺乳动物进行采样。分析了来自七个啮齿动物物种的总共1630个样品的抗体检测。与松树人工林相比,原生林中的ANDV血清阳性率和血清反应阳性啮齿动物的丰度明显更高。此外,蒙特雷松人工林降低了长叶寡木的丰度和相对丰度。(ANDV的主要储存库),并且不会改变该啮齿动物物种的性别比和年龄类别的分布,这对于ANDV的传播非常重要。我们的发现表明,与温带原生林相比,蒙特雷松树人工林不会给人类暴露于ANDV带来更高的风险。我们的结果对于在ANDV流行的人类主导地区的汉坦病毒风险评估很有用。
更新日期:2019-10-25
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