Abstract: Objective Objective To analyze the epidemic characteristics of imported malaria in Liyang City，so as to provide the evi? dence for formulating appropriate control strategies and measures. Methods Methods The malaria epidemic situation reports，case epi? demiological investigations and the follow?up materials of counterparts returned together with the cases were collected and ana? lyzed in Liyang City from 2007 to 2014. Results Results Totally 53 imported malaria cases were reported and they were all laboratory confirmed in Liyang City from 2007 to 2014. Forty ? nine cases（92.5%）were imported from African countries，37 cases （69.8%）were Plasmodium falciparum infection，and 37 cases（69.8%）had overseas incidence history. Forty cases（75.5%） were aged between 30 and 49 years，and 52 cases（98.1%）were male，42 cases（79.2%）were farmers. These cases were dis? tributed in all the 10 towns and there were no obvious seasonal variation for onset time. The median time from onset to seeing a doctor was 3 d，and the median time from seeing a doctor to being diagnosed was 0 d. The first visit health facilities by the pa? tients were various，and the diagnostic health facilities were all the medical institutions at the county level or above，and the standardized treatment rate was 100%. Conclusion Conclusion During the last 5 consecutive years，there have been no local infected ma? laria cases in Liyang City，and the remarkable results have been achieved in malaria elimination. However，there are still many imported malaria cases，and the infected species are diverse. Therefore，the imported malaria is still the key of malaria preven? tion and control.

Key words: Imported case, Malaria, Epidemic situation, Epidemic characteristics, Labor exported, Liyang City

摘要： 目的 目的 分析溧阳市境外输入性疟疾疫情， 为制订防治策略和措施提供参考依据。 方法 方法 收集2007-2014年溧 阳市疟疾疫情报表、 疟疾病例个案调查表以及与患者同行回国人员的追踪调查资料并分析。 结果 结果 2007-2014年， 溧阳 市共报告境外输入性疟疾病例53例， 均为实验室确诊病例， 主要来自非洲国家 （49例， 占92.5%）， 以恶性疟为主 （37例， 占69.8%）， 多有境外疟疾发病史 （37例， 占69.8%）。病例主要集中于30～49岁年龄段 （40例， 占75.5%）， 以男性为主 （52 例， 占98.1%）， 职业以农民为主 （42例， 占79.2%）。全市10个镇均有病例分布， 发病时间无明显季节变化。从发病到就 诊时间的中位数为3 d， 从就诊到确诊时间的中位数为0 d。首诊单位相对分散， 确诊单位均为县级以上医疗机构， 病例 规范治疗率为100%。 结论 结论 溧阳市已连续5年无本地感染疟疾病例报告， 消除疟疾工作成效显著， 但境外输入性疟疾 病例日益增多， 且感染虫种呈多样性， 是当前该市疟疾防控工作的重点。

关键词: 输入性病例, 疟疾, 疫情, 流行特征, 劳务输出, 溧阳市