Monitoring of Hemorrhagic Fever With Renal Syndrome in Sichuan Province,2010

Objective To understand the epidemic situation and the host animals development of hemorrhagic fever with renal syndrome(HFRS) in Sichuan province,provide scientific reference for HFRS prevention and control.Methods Data of HFRS epidemic in Sichuan was collected;rats were captured by trap-night method,frozen section of rat lung was made and the immunofluorescence technique was used to detect the hantavirus antigens.Results There were 66 cases and 2 deaths reported in Sichuan province in 2010,with the incidence of 0.080 6 /105.The main prevalent areas were Nanchong,Liangshan prefecture and Chengdu.Totally 397 rodents in 10 species were captured in monitoring sites,the rodents density was 6.94%.The rodents of Rattus norvegicus and Mus musculus were the dominant species in human dwelling areas,while Anourosorex squamipes and Apodemus chevieri were the dominant species in the fields.The hantavirus-carrying rate was 0 in rodents.Conclusion Monitoring results found no epidemic-related factors or causes may lead to increase of incidence,suggesting that the cases of HFRS were likely to fluctuate at a low level in 2 or 3 years in Sichuan province.However,monitoring work should be enhanced.