广西消除疟疾地区疟疾监测结果分析

Surveillance results and analysis of areas cleared of malaria in Guangxi Province,China

目的分析广西壮族自治区消除疟疾地区疟疾监测结果。方法对广西消除疟疾的31市县1999~2008年疟疾监测资料进行分析。结果1999~2008年31市县疟疾年发病率0.007~0.054,共报告疟疾病例525例,均为输入性病例;522例病原学确诊病例中,间日疟480例,恶性疟41例,混合感染1例;常住人口发热病人血检277 344人次,居民带虫调查31 906人,均未查见本地感染者;流动人口发热病人血检153 018人次,阳性516例,阳性率0.34%。525例病人中84.20%的病例为本地居民外地感染。结论广西自治区消除疟疾地区输入性疟疾严重影响疟防成果的巩固;加强流动人口的疟疾监测与控制是巩固疟防成果的关键。

Objective To analyze the results of malaria clearance in areas of Guangxi Province.Methods Data from 31 towns and counties that were cleared of malaria from 1999-2008 in Guangxi were studied and analyzed.Results The annual malaria morbidity rate was 0.007/10 000-0.054/10 000 in 31 towns and counties from 1999-2008.There were 525 cases of malaria,522 of which were imported.Etiology in these cases included plasmodium in 480,falciparum in 41,and mixed infection in 1.Blood tests of 277 344 local residents with fevers and resident parasite detection in 31 906 individuals found no cases of local infection.Blood tests of 153 018 migrants with fevers indicated that 516 were positive at a rate of 0.34%.Of 525 cases,84.20% were local residents who were infected elsewhere.Conclusion Imported cases of malaria had a serious impact in areas cleared of malaria in Guangxi.Enhancing malaria surveillance and control in the migrant population is key to ensuring that malaria is controlled.