2012年广州市恙虫病疫情分析

Scrub typhus epidemiologic analysis of Guangzhou in 2012

目的了解广州市恙虫病流行病学特征，为有效控制恙虫病提供依据。方法对广州市2012年疾病监测信息报告系统中上报的恙虫病病例进行描述性流行病学分析。结果2012年广州市报告恙虫病病例910例，年报告发病率7．4／10万；死亡4例，病死率为0．44％。病例以40岁及以上人群为主，占79．63％；农民占发病总数的52．09％；5-10月为发病高峰，占87．13％；南沙区、从化市、增城市、花都区和番禺区为恙虫病的高发地区，占发病总数的75．49％；4例死亡病例均因多脏器衰竭死亡。结论2012年广州市恙虫病流行主要集中在40岁及以上的农民，季节性与地区性明显，夏秋季的农村地区是防制重点，应采取规范有效的治疗措施，防止重症或死亡病例的发生。

Objective To explore the epidemiological characteristics of scrub typhus in Guangzhou, and provide basis for effective prevention and control of the disease. Methods Data of scrub typhus cases reported by National Disease Surveillance Reporting System were analyzed. Results Total of 910 cases were reported in 2012, with the morbidity of 7.4/100 000; 4 death cases, the mortality of 0. 44%. 79.63% were above 40 years old, farmers accounted for 52.09% of total cases. The scrub typhus peaks time was from May to October, which accounted for 87. 13% of total cases. The suburbs of Nansha , Conghua, Zengcheng , Huadu , Panyu were the high incidence places, which accounted for 75. 49% of total cases. 4 cases were deaths due to multiple organ failure. Conclusions Scrub Typhus epidemic mainly occurred in farmers above 40 years old, with obvious seasonally and regionally. The suburbs in summer and autumn are the key points of diseases pre- vention. It should be taken to standardize effective measures to prevent the occurrence of severe or death ca- ses.