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目的调查六安市健康人群和宿主动物SFTSV的感染率,探讨六安市存在自然疫源地的可能性,为制定防控策略提供依据。方法选取六安市病例较多的3个县,按照1∶1配比的方法确定4个病例村和4个对照村,调查测健康人群和宿主动物SFTSV血清流行病学情况,并比较不同地区间感染率有无差异,同时调查蜱等吸血媒介的种类和带毒率。结果共采集血清标本371份,SFTSV总抗体阳性111份,阳性率为29.92%,其中健康人群166份标本,检出阳性14份,阳性率8.43%;宿主动物205份标本,检出阳性97份,阳性率47.37%。不同县间、病例村和对照村间阳性率以及不同家畜的宿主动物SFTSV感染率差异有统计学意义。结论六安市部分地区的健康人群和宿主动物均有较高的SFTSV的感染率,属SFTS的流行区域,因而需加强监测报告、诊断识别和临床救治等能力。
Objective To investigate the prevalence of SFTSV in healthy population and host animals in Lu’an City and explore the possibility of natural foci in Lu’an City so as to provide the basis for making prevention and control strategies. Methods Three counties with more cases were selected in Lu’an City. According to the ratio of 1: 1, 4 case villages and 4 control villages were selected to investigate the epidemiological status of SFTSV in healthy and host animals, Whether the difference between the rate of infection, while investigating the types of ticks and other blood-borne media and the rate of poisoning. Results A total of 371 serum samples were collected, and 111 positive SFTSV antibodies were positive, with a positive rate of 29.92%. Among 166 healthy samples, 14 positive samples were positive and the positive rate was 8.43%. In 205 samples of host animals, 97 were positive , The positive rate of 47.37%. There were significant differences in the positive rate of SFTSV in different counties, case villages and control villages as well as the host animal SFTSV infection rates of different domestic animals. Conclusion The prevalence of SFTSV in healthy population and host animals in some areas of Lu’an City is a prevalence area of SFTS. Therefore, it is necessary to strengthen the ability of monitoring reports, diagnosis and identification and clinical treatment.