珠海市恙虫病流行病学特征分析

Epidemiological characteristics of scrub typhus in Zhuhai

目的了解珠海市恙虫病的流行特点,为防控疫情提供依据。方法回顾性分析2003~2012年在珠海市某医院住院的88例恙虫病确诊病例资料,描述其流行病学特征。结果珠海市恙虫病的发生存在明显的季节性,病例分布于4～12月份,5~7月份为发病高峰,病例数占60.22%。近年来发病例数整体呈上升趋势,尤其是2012年病例数增长显著,较2011年增加了50%。发病年龄以40~60岁年龄段最多,占45.46%,职业构成以农（渔）民最多,占35.23%。香洲区是发病例数最多的地区,病例数47例,占53.41%。结论恙虫病流行季节需做好高危人群的健康教育,以预防、控制恙虫病的发生及流行。

Objective To understand the epidemiological characteristics of scrub typhus in Zhuhai city and provide a basis for preventing and controlling the disease. Methods The clinical data of 88 scrub typhus inpatients in Zhuhai in 2003-2012 were analyzed retrospectively.Results There was a markedly seasonal distribution of scrub typhus infections in Zhuhai.The infections occurred from April to December.The peak time was from May to July accounted for 60.22% of the total cases.The annual incidence showed an increasing trend in recent years,especially in 2012,in which the cases increased by 50% over 2011.The patients were mainly in the age group of from 40 to 60 years（45.46%） and 35.23% of them were farmers and fishmen,and 47 cases（53.41%） was reported in Xiangzhou district. Conclusions It is necessary to launch health education among the high risk population during epidemic seasons in order to control prevalence of scrub typhus.