目的对浉河区人粒细胞无形体病进行流行病学分析,为控制疫情提供依据。方法 2010年共报告52例人粒细胞无形体病。开展流行病学调查并对其中的13例进行实验室检测。结果感染途径以蜱叮咬传播为主,占13.46%;35～79岁者占发病的88.46%;病死者多在发病8天内死亡。结论信阳市浉河区人粒细胞无形体病以蜱叮咬传播为主,有蜱接触史,35～79岁人群易感;对疑似病例及早使用抗生素,为避免出现并发症等采取经验性治疗,84.62%的病例痊愈出院。 Objective To analyze the epidemiology of human granulocytic anaplasmosis in Tahe District and provide the basis for controlling the epidemic. Methods A total of 52 cases of human granulocytic anaplasmosis were reported in 2010. Conduct epidemiological investigations and conduct laboratory tests on 13 of these. Results The routes of infection were mainly tick bites, accounting for 13.46%; those aged 35-79 accounted for 88.46% of the cases; those who died mostly died within 8 days of onset. Conclusion The population of human granulocytic anaplasmosis in Bahe District of Xinyang City is dominated by tick bites and has history of contact with ticks. It is susceptible to 35-79-year-old population. Early treatment with antibiotics in suspected cases and empirical treatment to avoid complications, 84.62% of cases were discharged.