The present work was supported by the national key research and development plan 2016YFD0500301,2016YFC1200200 and 2016YFC1200905.国家重点研发计划2016YFD0500301;题目:重大人畜共患病疫情的快速鉴定、溯源预警及阻断策略研究;2016YFC1200200;题目:重要新发突发病原体发生与播散机制研究;2016YFC1200905;题目:重要新发突发病原体应急处置方案与规范研究