四川省棘球蚴病患病情况调查及评估

Prevelance Investigation and Evaluation of Human Echinococcosis in Sichuan Province

目的了解四川省人群棘球蚴病患病情况。方法采用分层随机系统抽样方法,对四川省棘球蚴病流行区的甘孜州和阿坝州31个县人群进行腹部B超检查结合血清抗棘球蚴抗体IgG检测的方法筛查棘球蚴病患者,统计患病率,推算患病人数。结果四川省棘球蚴病标化患病率为1.06%,患者数约2万人,其中甘孜州棘球蚴病标化患病率1.55%,推算患者15 335人,主要分布在石渠7 720人,色达2 755人,甘孜1 760人,德格835人,白玉404人,炉霍333人,新龙305人和理塘265人;阿坝州棘球蚴病标化患病率0.48%,推算患者4 112人,主要分布在若尔盖748人,马尔康595人,阿坝579人,金川497人,红原302人,松潘301人和壤塘294人。结论四川省包虫病主要流行于甘孜州石渠等8县和阿坝州若尔盖等7县。防治重点和经费投入应主要集中在这15个县。

Objective To investigate and evaluate the prevelance of human echinococcosis in Sichuan province.Methods With randomly stratified cluster sampling method,people in 31 counties in Ganzi and Aba prefectures,Sichuan province,was screened for echinococcosis using B ultrasound scanning combined with sera anti-echinococcus antibody IgG detection.The prevelance of echinococcosis in human was determined and the numbers of cases were estimated.Results The standarded prevelance of human echinococcosis in Sichuan province was to 1.06%,human cases were estimated to be around 20 000.Most human echinococcosis cases were found in Ganzi prefecture,where the prevelance of echinococcos was counted for 1.55% and the estimated human case was 15 335,mainly distributed in 8 counties including Shiqu,Seda,Ganzi,Dege,Baiyu,Luhuo,Xinlong and Litang.Whereas 48% of echinococcosis prevelance was eastimated for Aba prefecture,where 4 112 of human cases were primarily dispersed in Ruoergai,Maerkang,Aba,Jinchuan,Hongyuan,Songpan and Rangtan.Conclusion Echinococcosis was highly prevelant in 8 counties in Ganzi prefecture and in 7 counties in Aba prefecture.Control strategy towards this disease should be mainly focused on these heavily endemic counties in order to obtain more effective control outcomes.