博士后创新人才支持计划BX201600078;国家自然科学基金面上项目81571991;传染病预防控制国家重点实验室项目2016SKLID307,2016SKLID602National Postdoctoral Program for Innovative TalentsBX201600078;National Natural Science Foundation of China81571991;SKLID Development Grant2016SKLID307,2016SKLID602