期刊
PARASITOLOGY
卷 136, 期 7, 页码 737-746出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0031182009005885
关键词
Schistosoma japonicum; Oncomelania hupensis; spatial epidemiology; remote sensing; geographical information system; China
类别
资金
- National High Technology R&D Program of China (863 Program)
- National Key Technology RD Program
- National Natural Science Foundation of China
- Construction of Key Discipline of Shanghai Municipality
- National important Technologies Project
- Fudan Scientific Innovation Act
- [2006AA02Z402]
- [2006BAI19B02]
- [30590374]
- [B118]
- [2008ZX10004-011]
- [C-19-02]
Schistosomiasis control in China has, in general, been very Successful during the past Several decades. However, the rebounding of the epidemic Situation in some areas in recent years raises concerns about sustainable control strategy Of which locating active transmission sites (ATS) is a necessary first step. This Study presents a systematic approach for locating schistosomiasis ATS by combining the approaches of identifying high risk regions for schisotosmiasis and extracting snail habitats. Environmental, topographical, and human behavioural factors were included in the model. Four significant high-risk regions were detected and 6 ATS were located. We used the normalized difference water index (NDWI) combined with the normalized difference vegetation index (NDVI) to extract Snail habitats, and the pointwise 'P-value' surface approach to test statistical significance of predicted disease risk. We found complicated non-linear relationships between predictors and schistosomiasis risk, which might result in serious, biases if data were not properly treated. We also found that the associations were related to spatial scales, indicating that a well-designed series of studies, were needed to relate the disease risk with predictors across various study scales. Our approach provides a useful tool, especially in the field of vector-borne or environment-related diseases.
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