目的 了解温州市肾综合征出血热(HFRS)相关鼠形动物种群密度季节消长,为控制其孳生和繁殖及其鼠传疾病提供科学依据。方法 于2005－2010年用夹夜法监测温州市鼠形动物种群、密度季节消长变化情况,收集温州市2005－2010年HFRS发病资料。结果 2005－2010年共捕获室内外鼠形动物4种390只,以褐家鼠、小家鼠为主,分别占捕获总数的54.36%和33.33%,鼠密度分别为1.28%、1.11%、0.86%、0.88%、0.96%和0.80%,平均鼠密度为0.98%。鼠形动物全年均有分布,密度高峰期在6－8月;HFRS发病无明显季节分布,发病数随鼠形动物年平均密度下降而减少,鼠形动物密度季节消长与HFRS发病无相关关系(r＝-0.066,P＝0.840)。结论 温州市鼠形动物处于较低水平,近年来呈逐年下降趋势,但是HFRS病例时有报告,应大力开展爱国卫生运动,加强鼠形动物及鼠传疾病监测预警,防范鼠形动物危害。

Objective To investigate the community structure and seasonal fluctuation of rodents involved in hemorrhagic fever with renal syndrome (HFRS) in Wenzhou, China and to provide a scientific justifications for the prevention and control of rodents and rodent-borne diseases.Methods Rodents were captured, classified, and indentified by night traps at surveillance sentinels from 2005 to 2010 to investigate their community structure and seasonal fluctuation. The HFRS incidence data of Wenzhou during 2005-2010 were collected.Results A total of 390 rodents were captured by night traps from indoors and outdoors in Wenzhou from 2005 to 2010. Among all the four species of rodents captured,Rattus norvegicusand Mus musculuswere predominant, accounting for 54.36% and 33.33% of all rodents, respectively. The annual average rodent densities (capture rate) were 1.28%, 1.11%, 0.86%, 0.88%, 0.96%, and 0.80%, respectively, with an overall mean density of 0.98%. Rodents appeared throughout the year, but the peak period was from June to August. The incidence of HFRS showed no seasonality. The number of HFRS cases dropped with decreasing annual average rodent density. No significant correlation was found between the seasonality in rodent density and the incidence of HFRS (r＝-0.066,P＝0.840).Conclusion The rodent density in Wenzhou was on a low level, and dropped from 2005 to 2010. However, there were occasional reports of HFRS cases. It is important to strengthen surveillance and early warning of rodents in Patriotic Health Campaign to prevent the harm of rodents and rodent-borne diseases.