国家自然科学基金30660160,30960327,81273138;中国云南及其老挝边境地区疟疾/登革热联防联控合作项目;Supported by the National Natural Science Foundation of China No.30660160,30960327,81273138 and the Joint Control Project of Malaria and Dengue in China”s Frontier Areas Adjacent to Laos,Yunnan,China