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目的了解水电站库区沿岸鼠型动物及媒介蚤的种类和密度以及自然疫源性疾病的感染状况,以便采取控制措施。方法2004年8月对库区3个县8个乡镇9个调查点,采用鼠笼(夹)法捕获室内、外鼠型动物及蚤类分类鉴定;取鼠体肝脾和鼠滤纸血、人血及指示动物血分别检测鼠疫F1抗原和F1抗体;取鼠肺和鼠肾分别检验流行性出血热抗原及分离病毒和分离培养钩端螺旋体。结果捕获鼠型动物229只,捕获率8.23%,以褐家鼠(61.14%)和黄胸鼠(36.24%)为优势种。检测鼠肺229只,检测出流行性出血热病毒抗原阳性5只,阳性率2.18%。检测229份鼠肝、脾和鼠滤纸血229份、人血及指示动物血81份,均未发现鼠疫F1抗原和F1抗体阳性样本。未分离培养出钩端螺旋体病毒。结论三板溪水电站库区沿岸在3个调查点发现流行性出血热自然疫源地(家鼠型)。本次未检出动物鼠间的鼠疫感染指征。
Objective To understand the species and density of murine and vector fleas along the coasts of hydropower stations and the infection status of natural foci in order to take control measures. Methods In August 2004, 9 indoor and outdoor investigation points were surveyed in 8 townships of 3 counties in the reservoir area. The indoor and outdoor mouse and fleas were captured by squirrel cage method. The blood and the indicator animal blood were tested for the plague F1 antigen and the F1 antibody respectively. The mouse lung and the kidney were used to test the epidemic hemorrhagic fever antigens, virus isolation and the culture of Leptospira. Results Totally 229 mouse animals were captured with a capture rate of 8.23%. The dominant species were Rattus norvegicus (61.14%) and Rattus flavipectus (36.24%). A total of 229 rat lungs were detected, and 5 were positive for hemorrhagic fever virus antigen (positive rate: 2.18%). A total of 229 pieces of 229 pieces of rat liver, spleen and rat filter paper blood were detected, and 81 samples of human blood and indicator animals were tested. No positive samples of F1 and F1 were found. Leptospira virus was not isolated and cultured. Conclusion The natural epidemic area of epidemic hemorrhagic fever (house mouse type) was found at 3 investigation points along the coast of Sanbanxi Hydropower Station. This did not detect signs of plague infection in animal rats.