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目的了解历史疫源地永春县的宿主动物鼠类及媒介蚤类现在的情况,为防病工作提供参考。方法定期捕获活鼠,监测分析鼠密度及构成、鼠体蚤数量及构成,并进行鼠血清和内脏鼠疫病原学检验。结果鼠密度高平均密度为3.79%,黄胸鼠和褐家鼠为优势鼠种群;印鼠客蚤指数为2.11,超过警戒线水平“1”;鼠血清和内脏鼠疫病原学检验均为阴性。结论永春县存在鼠疫发生和流行的基本条件,一旦有病原传入就有鼠疫发生流行的危险。
Objective To understand the current situation of host animals, rodents and fleas in the historic foci of Yongchun County, so as to provide reference for disease prevention. Methods The rats were harvested periodically, the density and composition of the rats were monitored and analyzed. The number and composition of the fleas in the rats were tested, and the pathogenicity of the rat serum and viscera plague was tested. Results Rat density average density was 3.79%, Rattus flavipectus and Rattus norvegicus were the predominant mouse population; the rat-flea index was 2.11, which exceeded the warning level “1”; the pathogenicity tests of rat serum and viscera negative. Conclusion The basic conditions for the occurrence and prevalence of plague in Yongchun County are as follows. Once the pathogen is introduced, there is a danger of epidemic plague.