報 告 人：范 猛

主 持 人：張曉穎

時    間：2019年6月14日9：00

地    點：理學院五樓大數據實驗室

主辦單位：理學院

報告人簡介：

范猛，東北師范大學數學與統計學院二級教授、博士生導師、吉林省首批長白山學者特聘教授、教育部新世紀優秀人才、國務院政府特殊津貼獲得者?，F任數學與統計學院院長。

出版學術專著1部，聯合主編國際學術會議論文集及進展特刊4部，發表SCI論文百余篇；主持省部級以上科研項目10項，其中國家自然科學基金項目5項；獲教育部自然科學獎二等獎、吉林省第七屆青年科技獎、寶鋼教育獎優秀教師獎、明德教師獎等。2014-2018年連續五年入選“Elsevier中國高被引學者”?，F任4種國際期刊及《生物數學學報》編委、中國數學會生物數學專業委員會副理事長、吉林省數學會秘書長、吉林省工業與應用數學學會副理事長。

觀點綜述：

Echinococcosis has been recognized as one of the most important helminth zoonosis in China. Available models always consider dogs as the mainly definitive hosts. However, such models ignore the distinctions between domestic dogs and stray dogs. In this study, we propose a 10-dimensional dynamic model distinguishing stray dogs from domestic dogs to explore the special role of stray dogs and potential effects of disposing stray dogs on the transmission of Echinococcosis. The basic reproduction number R0, which measures the impact of bothdomestic dogs and stray dogs on the transmission, is determined to characterize the transmission dynamics. Global dynamic analysis of the model reveals that, without disposing the stray dogs, the Echinococcosis becomes endemic even the domestic dogs are controlled. Moreover, due to the difficulties in estimating the parameters involved in R0 with real data and the limitation of R0 in real-world applications, a new risk assessment tool called relative risk index Iriskis defined for the control of zoonotic diseases, and the studies of the risk assessment for Echinococcosis infection show that it is essential to distinguish stray dogs from domestic dogs in applications.