Study on Geogracter Character in Hebei Plague Natural Focus;

Study on Rodents Variety Structures of Jilin Province Plague Natural Focus;

Study on the Plague Natural Focus in Guangxi;

The discovery and study on the epidemic focus of Lyme disease in Tientsin,China;

Investigation on epidemic focus of angiostrongyliasis cantonensis in Yunnan Province,China;

Investigating on the epidemic focus of angiostrongylus cantonensis in Sanming;

Objective To understand current situation of natural focus hemorrhagic fever with renal syndrome(HFRS)in Shenzhen,so as to provide epidemiologic evidence for setting related prevention strategy.