论文部分内容阅读
目的了解福建省肾综合征出血热(HFRS)疫区类型,为防治工作提供依据。方法应用笼夜法捕鼠,计算鼠密度及鼠种构成,对鼠肺进行HFRS病毒抗原检测及病毒分离与鉴定。结果家鼠型疫区室内平均鼠密度为4.91%,褐家鼠为主要鼠种。混合型疫区室内平均鼠密度为5.73%,褐家鼠为优势种;野外平均鼠密度为12.95%,秋冬季明显高于春季,黑线姬鼠为优势种。室内以褐家鼠为主要带病毒鼠种,携带Ⅱ型病毒,野外带病毒鼠均为黑线姬鼠,携带Ⅰ型病毒。从黑线姬鼠和褐家鼠中各分离出1株HFRS病毒,定名为A44和R50株。结论福建省HFRS的主要宿主动物仍以褐家鼠为主,混合型疫区野外主要宿主动物为黑线姬鼠,应加强重点疫区和老疫区的HFRS监测防治工作。
Objective To understand the type of epidemic area of hemorrhagic fever with renal syndrome (HFRS) in Fujian Province and provide basis for prevention and control. Methods Cage night method was used to catch mice, calculate the density of mice and the structure of mice. The lungs were tested for HFRS virus antigen and the virus was isolated and identified. Results The average indoor rat density in domestic mice was 4.91%, and Rattus norvegicus was the main mouse species. The average indoor density of mixed-type epidemic area was 5.73%, Rattus norvegicus was the dominant species; the average density of the wild was 12.95%, the autumn-winter was significantly higher than that of spring, and Apodemus agrarius was the dominant species. Indoor Rattus norvegicus as the main virus-bearing mice species, carrying type II virus, wild-band virus mice are Apodemus agrarius, carrying type I virus. One strain of HFRS virus was isolated from Apodemus agrarius and Rattus norvegicus, designated as A44 and R50. Conclusions The main host animals of HFRS in Fujian Province are still mainly Rattus norvegicus, and the main host animal in the mixed type epidemic area is Apodemus agrarius. HFRS monitoring and control should be strengthened in key and precocious areas.