关键词: 鼠疫, 监测, 分析

Abstract:

Objective To determine the epidemic dynamics and epidemiological patterns to inform the prediction, warning and countermeasure developmens to plague in Dali. Methods Monitoring of plague hosts, vectors and etiology was conducted in the state from 2008 to 2010 in accordance with the National and Yunnan Provincial Plague Monitoring Programs. Results Rodents belonging to 15 species, 7 genera, 3 families of 2 orders were collected. Rattus tanezumi and R. norvegicus were the dominant species both indoor and outdoor. Apodemus chevrieri and Eothenomys miletus were predominant in the field. Nine species, 9 genera, 4 families of 1 order of rodent-borne fleas were found. Leptopsylla segnis and Xenopsylla cheopis were mainly seen on R. norvegicus, X. cheopis and L. segnis on R. norvegicus, Frontopsylla spadix and Neopsylla specialis specialis on A. chevrieri, and Ctenophthalmus quadratus on E. miletus. F. spadix and N. specialis specialis were the secondary vectors. A total of 17 649 animal samples, 7549 vector samples and 7391 rodent serum samples were detected and found negative. Conclusion Despite stable composition of hosts, vectors, density and indices in the natural foci of plague in Dali, continuous occurrence of plague epidemics in recent years along Lijiang region warranted an intensified monitoring and sound preparation.

Key words: Plague, Monitoring, Analysis