COMMUNITY STRUCTURE AND PREVALENCE OF HANTAVIRUS INFECTION IN RODENTS- A GEOGRAPHIC DIVISION OF THE ENZOOTIC AREA IN FAR-EASTERN RUSSIA

The results of an extensive rodent trapping effort throughout the sout hern part of far eastern Russia and hantavirus antigen screening of ti ssues were used to develop a multifaceted approach for the geographic division of the enzootic territory of hantavirus. Four species of rode nts (Apodemus agrarius, Apodemus peninsulae, Microtus fortis, and Clet hrionomys rufocanus) comprised 88.5 percent of 10,595 captured rodents and 94.1 percent of 996 antigen-positive animals. Rodent fauna and rh p prevalence and distribution of hantavirus antigen-positive animals w ere compared among major biotic communities in the region. The species composition of the rodent communities and the predominant hantavirus reservoir species were used as criteria to define zones with similar e nzootic characteristics.