Population density of Rhombomys opimus and the epidemic risk of plague in the foci in Sino-Kazakh border region
Objective To get an insight into the dynamic characteristics of population density distribution of Rhombomys opimus in the areas around the ports in Sino-Kazakh border, providing a basis for better surveillance and early warning. Methods The route tunnel group method was used to investigate the population density and habitat of Rh. opimus in the plague surveillance sites. IHA, RIHA, ELISA and the four-step separation methods were employed to detect the plague F1 antibody, the antigens and the pathogens. Results The average tunnel group coverage of Rh. opimus population in the four ecological zones was 29.7%, with the tunnel group density being 8.9/hm2, the tunnel group habitat rate 33.2% and Rh. opimus density 10.5/hm2. Entry of Rh. opimus by the entry passages and the border were the major pathways of incoming epidemics. Conclusion The population density of Rh. opimus in the areas around the ports in Sino-Kazakh border is high, so high vigilance should be held against plague outbreak from Rh. opimus.
NETL
NSTL
万方数据
维普
