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目的分析许昌市手足口病的流行病学特征,为手足口病防治提供依据。方法运用描述流行病学的方法,对许昌市2009～2011年手足口病数据进行分析。结果 2009～2011年累计报告手足口病18 382例,年均发病率为144.14/10万,死亡5例,平均死亡率为0.04/10万。2009～2011年发病率分别为161.34/10万、165.32/10万、105.89/10万;4～8月合计发病13 579例,占3年总数的73.87%;年均发病率最高的是东城区(414.75/10万),最低的是襄城县(103.52/10万);全部病例中散居儿童占82.44%(15 154/18 382),重症病例占9.35%(1 718/18 382),病原分布以EV71型为主,占41.91%(720/1 718)。结论许昌市手足口病主要分布于4～8月份,以散居儿童为主,2011年许昌市重症病例中柯萨奇病毒A16型感染比例增高。
Objective To analyze the epidemiological characteristics of hand-foot-mouth disease in Xuchang city and provide basis for the prevention and treatment of hand-foot-mouth disease. Methods Using the method of describing epidemiology, the data of hand-foot-mouth disease in Xuchang from 2009 to 2011 were analyzed. Results A total of 18 382 HFMD cases were reported from 2009 to 2011 with an average annual incidence of 144.14 / 100 000 and 5 deaths with an average mortality of 0.04 / 100 000. From 2009 to 2011, the incidence rates were 161.34 / lakh, 165.32 / lakh and 105.89 / lakh respectively. From January to August, 13 579 cases were found, accounting for 73.87% of the total in 3 years. The highest average annual incidence was Dongcheng District (414.75 / 100000), the lowest was Xiangcheng County (103.52 / 100000); the scattered children in all cases accounted for 82.44% (15 154/18 382), the severe cases accounted for 9.35% (1718/18 382) The distribution of EV71 type, accounting for 41.91% (720/1 718). Conclusions Hand-foot-mouth disease in Xuchang City is mainly distributed in April-August, with mainly scattered children. In 2011, the proportion of Coxsackie virus A16 infection was increased in severe cases in Xuchang City.