The Role of Landscape Composition and Configuration on Pteropus giganteus Roosting Ecology and Nipah Virus Spillover Risk in Bangladesh
The Role of Landscape Composition and Configuration on Pteropus giganteus Roosting Ecology and Nipah Virus Spillover Risk in Bangladesh
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DOI：
10.4269/ajtmh.13-0256
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发表时间：
2014-02-01
影响因子：
3.3
通讯作者：
Luby, Stephen P.
中科院分区：
文献类型：
--
作者：
Hahn, Micah B.;Gurley, Emily S.;Luby, Stephen P.
尼帕病毒在孟加拉国中部和西北部（“尼帕带”）造成反复暴发。人们对果蝠水库巨翼蝠的栖息行为或驱动溢出的因素知之甚少。我们比较了病例村和对照村（未报告暴发）的人口密度和生态特征，以了解它们在巨形疟原虫中的作用。栖息生态和尼帕病毒外溢风险。尼帕带村庄的人口密度较高（P < 0.0001），森林比孟加拉国其他地方更破碎（0.50对0.32斑块/公里(2),P < 0.0001）。一个村庄的栖息地数量与森林破碎化相关（r = 0.22, P = 0.03）。有长叶多聚树或木棉树的村庄是更可能发生病例的村庄（优势比[or] = 10.8, 95%可信区间[CI] = 1.3-90.6）。该研究表明，除人口密度外，巨足虫和人类共有的景观组成和结构也可能影响尼帕病毒外溢的地理分布。
Nipah virus has caused recurring outbreaks in central and northwest Bangladesh (the "Nipah Belt"). Little is known about roosting behavior of the fruit bat reservoir, Pteropus giganteus, or factors driving spillover. We compared human population density and ecological characteristics of case villages and control villages (no reported outbreaks) to understand their role in P. giganteus. roosting ecology and Nipah virus spillover risk. Nipah Belt villages have a higher human population density (P < 0.0001), and forests that are more fragmented than elsewhere in Bangladesh (0.50 versus 0.32 patches/km(2), P < 0.0001). The number of roosts in a village correlates with forest fragmentation (r = 0.22, P = 0.03). Villages with a roost containing Polyahhia longifolia or Bombax ceiba trees were more likely case villages (odds ratio [OR] = 10.8, 95% confidence interval [CI] = 1.3-90.6). This study suggests that, in addition to human population density, composition and structure of the landscape shared by P. giganteus and humans may influence the geographic distribution of Nipah virus spillovers.