The epidemic characteristics and preventive measures of hemorrhagic fever with renal syndrome in Changsha City

Objective To know the epidemic characteristics of hemorrhagic fever with renal syndrome(HFRS) in Changsha City,and to summarize the preventive measures,so as to provide scientific basis for preventing and controlling the disease.Methods The morbidity and mortality data of HFRS from 1971 to 2010 in Changsha City,the data on HFRS distribution of multitude,month,region from 1991 to 2010 in Changsha City,and the data on rodents density and infection rates in surveillance county from 2005 to 2009 were collected,descriptive epidemiological analysis was performed.Results The epidemic situation of HFRS in Changsha City were divided into four stages,each stage in which had a morbidity peak lasting about 10 years.The gap of every peak was about 10 years before 21 century.The incidence was decreased,but the mortality increased after 2000.It was a mixed epidemic area in Changsha City,and rural area was severe.It was showed that male prime had high level of morbidity and mortality,the high risk occupation was peasant,and the high level season of incidence was spring and winter.Conclusions In current situation,we should resort to vaccination,increasing publicity,disinfection,deratization and other measures in important area and multitude.