粤桂琼三省区流动人口疟疾联合管理广东区效果评价

目的分析和评价粤桂琼三省区疟疾联防机制对控制广东流动人口疟疾疫情的作用。方法主动侦查与被动侦查相结合,通过发热病人血检和疟疾病人个案调查,使用回归流行病学方法对资料进行分类和分析。结果广东参加疟疾联防的6个地级市19年共发现流动人口疟疾病例32 398例,其中归属广东籍流动人口疟疾病人有8488例;归属海南省籍流动人口疟疾病人有8 918例;归属广西区籍流动人口疟疾病人有3 686例;归属其它省籍流动人口疟疾病人有11 306例。32 398例流动人口疟疾病人中,输入性恶性疟有114例,其余32 284例为间日疟。流动人口中的回归人员共有病例7 235例,血检阳性率为2.56%;流动人口中的外来人员共有病例25 163例,血检阳性率为2.08%;两者血检阳性率比较差异无统计学意义(P0.05)。野外作业与室内作业流动人口血检阳性率相比,差异有统计学意义。1992～2010年广东省疟疾疫情呈逐年下降趋势。结论通过连续19年的疟疾联防,广东流动人口疟疾疫情得到控制,输入病例和输入继发病例明显减少,广东省疟疾疫情稳定,年发病率逐年下降。

Effect of intersectional malaria control among floating population in Guangdong area of three-province joint prevention

Objective To analyze and evaluate the effectiveness of three-province joint prevention for malaria control among floating population in Guangdong province.Methods Active survey and passive survey were carried out to investigate malaria cases.The data of blood examination and malaria patients were analyzed with regressive epidemiology method.Result 32 398 malaria cases were identified among the floating population in the 6 cities of Guangdong province during 19 years＇ joint malaria control.8 470 of all the cases were reported from Guangdong registered citizens,8 918 from Hainan,3 686 from Guangxi,11 306 from other provinces.114 of 32 398 malaria cases were imported malignant malaria and the other 32 284 cases were tertian malaria.The positive rates of blood test for 7 235 people who returned from outside and 25 163 non-residents were 2.56% and 0.15%,respectively,and showed no significant difference.A significant difference of positive rate was found between the people working outdoor and indoor,the annual malaria incidence rate has been declining from 1992~2010.Conclusion The malaria of floating population in Guangdong was effectively under control by 19 years＇ joint prevention and imported cases and secondary affection cases decreased significantly.Malaria epidemic situation in Guangdong has been stabilized with annual declining incidence.