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高抗性偶然宿主作为动物鼠疫的一时性宿主,对动物鼠疫的发生与流行有一定关系,而且对疫区或可疑地区进行鼠疫流行病学“侦察”有“指示”作用,同时对疫情的预测预报,以及进行疫区回顾性研究有积极意义。1 材料与结果 2例偶然宿主来源于肃北蒙古族自治县鱼儿红地区。该区系喜马拉雅旱獭鼠疫自然疫源地,旱獭为该地优势种,是鼠疫菌的主要贮存宿主。第1例于1975年7月从该地1只自毙狐狸体内分离出1株鼠疫菌,继而从自毙旱獭体内分离出目的菌,首次证实该地动物间有鼠疫流行,判定该地为鼠疫自然疫源地;第2例为1997年8月从该地1只自毙牧犬体中分离出1株鼠疫菌,这与该地当年鼠间鼠疫暴发
Occasional host of high resistance, as a transient host of animal plague, has certain relationship with the occurrence and prevalence of animal plague, and also has an “indication” effect on epidemiological “reconnaissance” of plague in epidemic areas or suspicious areas. Meanwhile, the prediction of epidemic situation Forecasting, as well as retrospective study of the epidemic area is of positive significance. MATERIALS AND RESULTS A total of 2 cases of accidental host originated from the fish red area of Subei Mongolian Autonomous County. This area is a natural foci of the plague of Marmota marmota, and the marmot is the dominant species in this area, which is the main storage host of Y. pestis. The first case from July 1975 from a fox in the body isolated from a Y. pestis, and then from the self-natal Marmot isolated from the body of bacteria, for the first time confirmed the presence of plague epidemic among the animals, to determine the plague Natural foci; the second case was isolated in August 1997 from a single animal in the herd dog Yarrowia plague bacteria, which was the plague outbreak in that year