关键词: 输入性疟疾, 流行病学, 分析

Abstract: Objective To analyze the epidemic characteristics and trend of imported malaria in Guangxi Zhuang Autonomous Region, China from 2010 to 2012, and to provide a scientific basis for improving the diagnosis and treatment of imported malaria in the late stage of malaria surveillance elimination in Guangxi in 2018. Methods The data from imported malaria questionnaires and the disease reporting information system of Chinese Center for Disease Control and Prevention from 2010 to 2012 were collected. Descriptive and statistical analysis was performed on the species composition, infection origin, population distribution, and regional distribution of imported malaria.Results A total of 397 imported malaria cases were reported,including 289 overseas imported cases and 8 domestically imported cases from other provinces of China. Among these cases, 261 were infected byPlasmodium falciparum, 102 by P. vivax, 7 by P. malariae, and 3 by P. ovale. Eight patients were infected by multiple species, 16 patients by undetermined species, and 4 patients died of malaria. Most imported malaria cases (368/397,92.70%) were distributed in 6 prefecture-level cities, i.e., Nanning, Guilin, Hechi, Baise, Yulin, and Chongzuo. The ratio of male to female cases was 55.7∶1. The age range was 20-50 years. Most patients were farmers and factory workers (339/397, 85.39%).Most cases were imported from Ghana in Africa (212 cases), followed by Myanmar (68 cases) and Cambodia (26 cases) in Asia.Conclusion The imported malaria cases mainly originated from overseas.P. falciparumwas the predominant species. The epidemic situation of overseas imported malaria in Guangxi has become more and more serious. In order to achieve the goal of malaria elimination in Guangxi in 2018, it is necessary to strengthen monitoring, diagnosis, and treatment of imported malaria cases among overseas workers from the malaria prevalent areas in Africa and Southeast Asian countries.

Key words: Imported malaria, Epidemiology, Analyze