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目的了解手足口病重复感染发生率,病例流行病学特征及重复感染时间间隔等情况,为手足口病防控工作提供依据。方法将2008-2011年手足口病个案信息从《中国疾病监测信息报告管理系统》中导出,按照预先设定重复感染条件,筛选重复感染病例,分析重复感染的发生率及其特征。结果 2008-2011年衢州市共报告手足口病病例14 782人次,有551例计1115人次重复感染,发生率7.54%,其中感染2次的有538例计1076人次,感染3次的有13例计39人次;辖区6个县(市、区)均有手足口病重复感染病例报告;第一、二次感染间隔16～1212 d,第二、三次感染间隔时间127～778 d。结论手足口病重复感染病例相对非重复感染病例无明显的特殊性,已感染过手足口病的儿童仍应做好手足口病预防工作。
Objective To understand the incidence of repetitive infections of hand-foot-mouth disease, the epidemiological characteristics of cases and the time interval of repeated infections so as to provide basis for the prevention and control of hand-foot-mouth disease. Methods From 2008 to 2011, the case information of hand-foot-mouth disease was derived from China Disease Surveillance Information Reporting Management System. According to the preset infection conditions, repeated infections were screened and the incidence and characteristics of repeated infections were analyzed. Results A total of 14 782 HFMD cases were reported in Quzhou City from 2008 to 2011, with a total of 1115 repeat infections (551 cases), with a prevalence of 7.54%. Among them, 538 cases (1076) were infected twice and 13 (13 cases) were infected Count 39 people; area 6 counties (cities, districts) have hand, foot and mouth disease recurring case reports; first and second infection interval 16 ~ 1212 d, the second and third infection interval of 127 ~ 778 d. Conclusion There is no obvious peculiarities in relapse cases of HFMD among non-recurrent infections. Children who have been infected with HFMD should still make HFMD prevention work.