کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3420814 | 1594021 | 2008 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Predictable ecology and geography of avian influenza (H5N1) transmission in Nigeria and West Africa
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Predictable ecology and geography of avian influenza (H5N1) transmission in Nigeria and West Africa Predictable ecology and geography of avian influenza (H5N1) transmission in Nigeria and West Africa](/preview/png/3420814.png)
چکیده انگلیسی
The emerging virus strain termed highly pathogenic H5N1 avian influenza (HP-H5N1) has spread widely in the past decade and is now the focus of considerable concern in several sectors. We tested the hypothesis that spatial distributions of veterinary and human HP-H5N1 cases are related to coarse-scale environmental features in West Africa. We used ecological niche models to associate Nigerian HP-H5N1 occurrences with 1Â km resolution digital data layers summarizing parameters of surface reflectance and landform. Predictive challenges included anticipating the spatial distribution of (i) random subsamples and (ii) spatially and temporally stratified subsamples of Nigerian occurrence data, and (iii) more limited occurrence data from across West Africa. In almost all tests, we found that HP-H5N1 cases were occurring under predictable environmental conditions, suggesting that elements of the transmission cycle have some form of ecological determination, here measured as differences in land-surface reflectance and plant phenology through the year. Considerable additional work is needed to establish how these differences affect HP-H5N1 transmission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of the Royal Society of Tropical Medicine and Hygiene - Volume 102, Issue 5, May 2008, Pages 471-479
Journal: Transactions of the Royal Society of Tropical Medicine and Hygiene - Volume 102, Issue 5, May 2008, Pages 471-479
نویسندگان
Richard A.J. Williams, Folorunso O. Fasina, A. Townsend Peterson,