关键词: 肾综合征出血热, 疫情监测

Abstract: This article Summarizes the results of surveillance on epidemics of HFRS in human and animals in HFRS surveillance spots in China from 1991 to 1993．New achievements were obtained after summation of the surveillance spot work in China in 1990.The regular pattern of unequilibrium and relative stability of the space distribution of epidemics in human and animals was further confirmed.The epidemic features of periodicity and seasonality of different types of epidemic areas were proved.That Apodemus agrarius was the main source of infection in fields and Rattus norvegicus was the main source of infection in residential areas was further expounded. The role of sources of infection played by some other small animals with rather large quantities and rather high virus-carrying rates should be studied with effort.It was confirmed that the quantity of population of the main source of infection of HFRS with large quantity, high density and high viruscarrying rate fluctuated in different years, seasons and areas, however,it was a1so rolatively stable. The consistency between the index of virus－carrying rat as the main source of infection in epidemic areas and the morbidity in local areas was further confirmed. Therefore, it is proposed that the virus－carrying rat as the main of infection in local area before the epidemic peak (density×viru-scarrying rate)serves as the index for prediction of the trend or the epidemic intensity.