摘要
目的通过现场试验,评价永城市不同媒介防制方法的防制效果。方法在不同媒介防制措施处理村,以旬为单位,采用清晨室内50顶蚊帐内捕捉按蚊、夜间室外人饵诱捕按蚊方法进行媒介监测。结果清晨室内50顶蚊帐内共捕获按蚊79只,占33.33%,其它蚊虫158只,占66.67%。对照组平均按蚊密度为0.18只/(顶·次),浸泡蚊帐组、滞留喷洒组、浸泡蚊帐+灭蚊幼组、滞留喷洒+灭蚊幼组分别为0.03、0.03、0.05和0.06只/(顶·次);几种措施均对降低按蚊密度有效(F=4.553,P<0.01),但还不能认为各处理措施之间在降低蚊密度方面存在差异。对照组平均按蚊叮人率为0.10只/(人·夜),浸泡蚊帐组、滞留喷洒组、浸泡蚊帐+生物灭蚊幼组、滞留喷洒+生物灭蚊幼组分别为0.02、0.01、0.03和0.03只/(人·夜);几种处理措施均对降低按蚊叮人率有效(F=5.261,P<0.01),但还不能认为各处理措施之间在降低按蚊叮人率方面存在差异。不同监测点夜间室外人诱按蚊183只,占15.69%,其它蚊983只,占84.31%。对照组平均按蚊密度为2.48只/h,浸泡蚊帐组、滞留喷洒组、生物灭蚊幼组、浸泡蚊帐+灭蚊幼组、滞留喷洒+灭蚊幼组分别为0.76、2.12、0.24、1.08和0.64只/h。与对照组相比,浸泡蚊帐组、生物灭蚊幼组、浸泡蚊帐+灭蚊幼组、滞留喷洒+灭蚊幼组按蚊密度较低;滞留喷洒组与浸泡蚊帐组、生物灭蚊幼组、滞留喷洒+灭蚊幼组相比,按蚊密度较高。对照组平均叮人率为12.40只/(人·夜),浸泡蚊帐组、滞留喷洒组、生物灭蚊幼组、浸泡蚊帐+灭蚊幼组、滞留喷洒+灭蚊幼组分别为3.80、10.60、1.20、5.40和3.20只/(人·夜)。与对照组相比,浸泡蚊帐组、生物灭蚊幼组、浸泡蚊帐+灭蚊幼组、滞留喷洒+灭蚊幼组按蚊叮人率较低,滞留喷洒组与浸泡蚊帐组、生物灭蚊幼组、滞留喷洒+灭蚊幼组相比,按蚊叮人率较高。经Pearson相关分析,10月室外人帐诱按蚊密度与11月疟疾发病率呈正相关关系(r=0.945,P<0.01);10月校正叮人率与11月疟疾发病率呈正相关关系(r=0.927,P<0.05)。结论不同媒介防制方法对降低永城市室内外按蚊密度、叮人率效果均较明显,但各处理措施在降低室内外按蚊密度、叮人率效果方面孰优孰劣,尚待进一步研究证实。
Objective To evaluate the effects of different vector mosquito control measures for malaria in Yongcheng through field tests.Methods Vector monitoring was conducted in villages using different vector prevention and control measures,where mosquitoes of anopheles were captured every ten days using 50 mosquito nets indoors in early morning and using human baits outdoors at night.Results A total of 79 anopheles mosquitoes were captured by nets in early morning,accounting for 33.33%,with other captives of 158 accounting for 66.67%.The average anopheles density was 0.18/net per capture in the control group,and 0.03,0.03,0.05 and 0.06/net per capture in the impregnated-net group,residual spraying group,impregnated-net plus larviciding group and residual spraying plus larviciding group,respectively.Albeit effective in reducing anopheles density（F=4.553,P0.01）,these measures were not deemed different in the effects.The average man-biting rate was 0.10 mosquito/（person·night） in the control group,and 0.02,0.01,0.03 and 0.03 mosquito/（person·night） in the impregnated-net,residual spraying,impregnated-net plus biological larviciding and residual spraying plus larviciding groups,respectively.Though effective in reducing man-biting rates（F=5.261,P0.01）,the measures were not considered different in the effects.At different monitoring sites,183 anopheles mosquitoes were captured outdoors by human baits at night,accounting for 15.69%,with other captives of 983 accounting for 84.31%.The average anopheles density was 2.48/h in the control group,and 0.76,2.12,0.24,1.08 and 0.64/h in the impregnated-net,residual spraying,biological larviciding,impregnated-net plus larviciding and residual spraying plus larviciding groups,respectively.The mosquito density in the impregnated-net,biological larviciding,impregnated-net plus larviciding and residual spraying plus larviciding groups was lower than that in the control group,and the density in the residual spraying group was higher than those in the impregnated-net,biological larviciding and residual spraying plus larviciding groups.The average man-biting rate was 12.40 mosquitoes/（person·night） in the control group,and 3.80,10.60,1.20,5.40 and 3.20 mosquitoes/（person·night） in the impregnated-net,residual spraying,biological larviciding,impregnated-net plus larviciding and residual spraying plus larviciding groups,respectively.The man-biting rates in the impregnated-net,biological larviciding,impregnated-net plus larviciding and residual spraying plus larviciding groups were lower than that in the control group,while the rate in the residual spraying group was higher than those in the impregnated net,biological larviciding and impregnated-net plus larviciding groups.The Pearson correlation analysis revealed a positive correlation between the outdoor anopheles density in October and the incidence of malaria in November（r=0.945,P0.01）,and a positive correlation between the corrected man-biting rate in October and the incidence of malaria in November（r=0.927,P0.05）.Conclusion The above prevention and control measures were effective in reducing both indoor and outdoor anopheles density as well as man-biting rates in Yongcheng city;however,the advantages and disadvantages of specific measure should be further studied.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
2010年第4期346-349,共4页
Chinese Journal of Vector Biology and Control
基金
河南省科技攻关项目(092102310007)~~
关键词
疟疾
媒介防制
对比试验
Malaria
Vector control
Comparative study
