摘要
目的了解基本消除疟疾地区的流行动态及其影响因素,为评价防治效果和制定疟疾防治对策提供科学依据。方法对各监测点发热在37.5℃以上的临床诊断为疟疾、疑似疟疾、发热原因不明者进行疟原虫检查;在疟疾流行季节后期(10-11月)采集7～12岁儿童滤纸血进行间接荧光抗体(IFA)检测;每年6-10月,采用19～22时室外人诱加清晨蚊帐内搜捕的方法捕蚊,进行叮人率调查。结果2005-2007年发热病人血检阳性率分别为4.95%、1.62%和0,均为输入性病例;3个监测点连续3年间接荧光抗体(IFA)检测全部阴性;中华按蚊叮人率以7月和8月为最高。结论基本消除疟疾后未发现本地感染疟疾病例和输入性继发病例,表明当地已阻断疟疾传播。
Objective To investigate the epidemic dynamic and influencing factors of areas that malaria was basically eliminated in Hunan Province, and to provide scientific evidences for evaluating control effects and making control strategy. Methods Blood samples of subjects who had a temperature of greater than 37.5 ~C, with clinical diagnosed malaria, border- line malaria, and agnogenic febrile symptoms were detected for malarial parasite examination in each monitoring spots. Filter paper blood samples from children aged between ？ and 12 years were collected to screen using indirect fluorescence assay （IFA） in the months of October and November. Mosquitoes were collected through outdoor human - bait capture from 19 P.M. to 22 P.M. and mosquito - net capture in the early morning to survey the man - biting rate from June to October each year. Results The positive rates of blood examination were 4.95 %, 1.62 %, and 0 in 200.5, 2006, and 2007 in fever patients, re- spectively, all cases were the afferent cases. The serological investigation results of indirect fluorescence antibody test （IFAT） were negative in three monitoring villages for three successive years. Anopheles hurcanus sinensis biting rate reached the peak in July and August. Conclusions There no autochthonous malaria case and introduced case occurred in areas where malaria was basically eliminated. The result of malaria control is satisfactory, which indicates malaria transmission is blocked in these areas.
出处
《实用预防医学》
CAS
2008年第6期1804-1806,共3页
Practical Preventive Medicine
