【摘要】 目的 通过一起非洲归国人员集中检出疟原虫事件的调查，探讨归国人员疟疾监测与管理存在的问题并提出改进建议。方法 采用描述性流行病学方法对2022年8月北京市朝阳区一批非洲归国人员集中检出疟原虫的流行病学特征、危险因素及治疗情况进行描述，并分析存在的问题。结果 91名非洲归国人员中既往有疟疾患病史的占62.6%(57/91)；入境后血涂片镜检发现10人疟原虫阳性，占本次所有归国人员的11.0%(10/91)，其中恶性疟原虫9人，卵型疟原虫1人。阳性人员年龄21～62岁；男性8人，女性2人；平均在非洲工作时间为10.4个月，均从事室外工作；在非洲均有蚊虫叮咬史，8人既往有疟疾病史，4人在血检前曾自服抗疟药物；3人为无症状带虫者。所有阳性检出人员均治愈。结论 非洲归国务工人员既往疟疾感染率较高，出入境检疫部门与地方疾控机构应尽快完善疟疾联防联控工作机制，降低疟疾病例输入后的再传播风险。更多还原

【Abstract】 Objective To explore the existing problems in malaria monitoring and management of returnees and put forward suggestions for improvement based on the investigation of an epidemic of detection positive of Plasmodium among African returnees. Methods Descriptive epidemiological method was used to describe the epidemiological characteristics,risk factors and treatment of persons who returned from Africa and detected Plasmodium in Chaoyang District,Beijing in August 2022 and existing problems were analyze. Results Among 91 African returnees,62.6%(57/91) had a history of malaria,a total of 10 people were positive for Plasmodium by microscopic examination after entry,accounted for 11.0%(10/91) of all African returnees this time,microscopic examination showed that there were9 cases of Plasmodium falciparum and 1 case of Plasmodium ovale. The age of the positive people ranged from 21to 62 years old,there are 8 males and 2 females,the average working time in Africa was 10.4 monthes. They were mainly engaged in outdoor work. The 10 positive people all had a history of mosquito bites in Africa,8 of them had a history of malaria in past, and 4 of them had taken antimalarial drugs by themselves before the blood test,and 3were asymptomatic carriers. All positive people were cured. Conclusion The former malaria infection rate of African returning workers was high. The entry-exit quarantine department and local center for disease prevention and control should establish and improve the joint prevention and control mechanism as soon as possible,and strive to reduce the risk of re-transmission of malaria cases after importation in China.更多还原