2009年四川省德格县鼠疫调查分析

目的分析2009年四川省德格县鼠疫流行态势,为该疫源地鼠疫防治提供科学依据。方法按照"全国鼠疫总体规划"和"四川省鼠疫监测方案"及实施细则进行调查。结果发现主要传播媒介为斧形盖蚤和谢氏山蚤;染疫动物2种,分别为喜马拉雅旱獭、牧犬;分离菌株12株,均来自旱獭,鼠疫间接血凝试验(IHA)阳性血清3份,1份来自旱獭,滴度为1:1280,2份来自牧犬,滴度分别为1:80、1:320,鼠疫反向血凝试验(RIHA)阳性9份,均来自旱獭,最高滴度为1:819200,最低滴度为1:16000。结论 2009年德格县动物鼠疫维持流行状态。

Investigation of Plague Epidemic in Dege County of Sichuan Province, 2009

Objective To analyze the trend of plague epidemic in the foci of Dege county,so as to provide scientific basis for plague prevention and control.Methods The survey was conducted according to the national plague control and prevention program and the plague surveillance scheme in sichuan.Results The survey found that the fleas of 11 species which belong to 10 genera and 4 families,and the main vectors of transmission fauna were Callopsylla and Oropsylla silantiewi.Two species of reservoir hosts were infected,which were marmota himalayana and herd-dog.Twelve strains of Y.pestis were isolated,which all came from M.himalayana.Three serum samples were positive by IHA,one serum sample from M.himalayana with the titer of 1：1280,other two serum sample from herd-dog with the titers were 1：80 and 1：320.9 serum samples were F1 antigen positive by RIHA with the highest titer of serum sample was 1：819200 and the lowest titer of serum sample was 1：16000,and the positive samples all came from M.himalayana.Conclusion The plague in animals of dege county occurred continuously in 2009.