Monitoring of Hemorrhagic Fever With Renal Syndrome in Sichuan Province,2011

Objective To understand the epidemic status and the host animal trends of hemorrhagic fever with renal syndrome(HFRS) in Sichuan as to provide scientific references.Methods The epidemic data of HFRS infection in Sichuan were collected;density of rodents was investigated by trap-night method and the immunofluore-scence technique was applied to detect the virus antigen.Results A total of 60 cases and 2 deaths were reported in Sichuan in 2011,with prevalent areas as Dazhou city,Liangshan prefecture and Nanchong city;a total number of 631 rodents belonging to 10 species were captured with a total density rate of 8.94%.The rodents of Mus musculus and Rattus norvegicus were the dominant species in human dwelling areas;the rodents of Anourosorex squamipes and Apodemus chevieri were the dominant species in the fields.The hantavirus-carrying rate was 0.27% in rodents.Conclusion Factors related with HFRS in Sichuan have not been found;intensified monitoring work should be carried out in future.