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目的嗜吞噬细胞无形体和伯氏疏螺旋体是由媒介蜱传播的引起人粒细胞无形体病和莱姆病的病原。目前,对两种病原在蜱体内共感染流行情况的研究相对较少。方法以甘肃、湖南和广东三个省采集到3个蜱种、共543份样品为研究对象,检测嗜吞噬细胞无形体和伯氏疏螺旋体在蜱体内的感染情况。结果嗜吞噬细胞无形体和伯氏疏螺旋体在不同地区采集到的蜱体内的感染率不同,分别为3.2%～20.0%和2.3%～19.3%。在检测的样品中,共发现有7份样品中同时感染嗜吞噬细胞无形体和伯氏疏螺旋体。青海血蜱、血红扇头蜱和微小牛蜱中均检测到这两种病原。结论青海血蜱、血红扇头蜱和微小牛蜱均能够携带嗜吞噬细胞无形体和伯氏疏螺旋体,可能为这两种病原在自然界的持续存在和循环提供了条件。此研究结果丰富了人粒细胞无形体病和莱姆病的流行病学信息,有利于提高这两种病的防控策略。
Objective Phagocytosis of phagocytes and Borrelia burgdorferi is a causative agent of anaplasmosis and Lyme disease caused by tick-borne ticks. At present, there are relatively few studies on the prevalence of co-infection of two pathogens in ticks. Methods Totally 3 ticks were collected from 3 provinces of Gansu, Hunan and Guangdong. A total of 543 samples were collected and tested for the infection of phagocytophil phaeocytes and Borrelia burgdorferi in ticks. Results The infection rates of tick-borne phagocyte and Borrelia burgdorferi in different regions were 3.2% -20.0% and 2.3% -19.3%, respectively. Of the samples tested, seven samples were found to infect phagocytophilus phagocytes and Borrelia burgdorferi simultaneously. Both of these pathogens were detected in Qinghai black-blood, tick-red and ticks. Conclusion All the blood-borne ticks, R. sanguis and M. bovis can carry phagocytic phagocytes and Borrelia burgdorferi, which may provide conditions for their persistence and circulation in nature. The results of this study enrich the epidemiological information of human granulocytic anamorphosis and Lyme disease, which is helpful to improve the prevention and control strategies of both diseases.