首页 | 官方网站   微博 | 高级检索  
     

2009年徐州地区疑似肠道病毒感染病例病原学研究
引用本文:杨晋川,丁韧,杜阳光,王保安,晏嘉璐,陈勇,孙传武,张雷,唐浏英.2009年徐州地区疑似肠道病毒感染病例病原学研究[J].中华实验和临床病毒学杂志,2011,25(1):106-108.
作者姓名:杨晋川  丁韧  杜阳光  王保安  晏嘉璐  陈勇  孙传武  张雷  唐浏英
作者单位:徐州市疾病预防控制中心,221003;中国疾病预防控制中心病毒病预防控制所;
摘    要:目的 了解2009年徐州地区肠道病毒感染引起手足口病情况,为手足口病防控工作提供科学依据.方法 采用荧光RT-PCR方法对240例临床诊断为肠道病毒感染的手足口病例中的222例肛拭子和咽拭子标本同时进行EV和EV71、CA16特异性RNA检测,用ELA方法对其中的114例急性期血清标本进行EV71-IgM抗体检测.同时检测健康儿童254份咽拭子和258份血清标本以及密切接触者咽拭子54份标本.结果 240例疑似肠道病毒感染者,总EV感染率为72.50%(174/240),其中EV71感染率为57.92%(139/240),CoxA16感染率为9.17%(22/240),其他EV感染率为5.42%(13/240).240例疑似肠道病毒感染者中的222份肛拭子标本EV71-RNA阳性率为45.94%(102/222)、咽拭子EV71-RNA阳性率为25.68%(57/222),114份急性期血清中EV71-IgM抗体阳性率为86.84%(99/114).254份健康儿童咽拭子EV71-RNA阳性率为1.57%(4/254),未检出CoxA16-RNA;258份健康儿童血清标本EV71-IgM抗体阳性率是2.71%(7/258).密接(医护人员)咽拭子54份,EV-RNA检测均为阴性.结论 徐州地区手足口病流行主要由EV71型引起.3岁以下儿童流行期间存在被EV71型隐性感染,并产生IgM抗体.成人即使密切接触传染源也不易被感染EV71.疑似病例急性期血清中EV71-IgM抗体检测阳性率最高(86.84%),其次为肛拭子EV71(45.94%)和咽拭子EV71(25.68%)的RNA检测阳性率.ELA试剂盒用于EV71型感染的早期诊断,具有操作简单快速经济,值得在基层推广.

关 键 词:手足口病    肠道病毒属    逆转录聚合酶链反应    柯萨奇病毒感染    

Research on the aetiology of suspected enterovirus infected patients in Xuzhou district in 2009
YANG Jin-chuan,DING Ren,DU Yang-guang,WANG Bao-an,YAN Jia-lu,CHEN Yong,SUN Chuan-wu,ZHANG Lei,TANG Liu-ying.Research on the aetiology of suspected enterovirus infected patients in Xuzhou district in 2009[J].Chinese Journal of Experimental and Clinical Virology,2011,25(1):106-108.
Authors:YANG Jin-chuan  DING Ren  DU Yang-guang  WANG Bao-an  YAN Jia-lu  CHEN Yong  SUN Chuan-wu  ZHANG Lei  TANG Liu-ying
Abstract:Objective To understand and master the situation in which enteroviros caused handfoot-and-mouth disease(HFMD) in Xuzhou district in 2009 so as to provide scientific basis for the control and prevention of hand-foot-and-mouth disease. Methods The researchers adopted fluorescence RT-PCR method to detect EV and EV71 as well as the CAI6 specificity RNA from 222 samples of anal swabs and oropharyngeal swabs from the 240 cases who were diagnosed clinically as hand-foot-mouth disease infected by enterovirus. Also, the researchers conducted EV71-IgM antibody detection on 114 samples of acute phase serum with ELA method. Results Among the 240 enterovirus infected patients, the total EV infection rate is 72.50% ( 174/240), among which EV71 infection rate is 57. 92% ( 139/240), CoxA16 infection rate is 9. 17% (22/240), and other EV infection rate is 5.42% (13/240). The EV71-RNA positive rate of the samples of 222 anus swabs among the 240 suspected enterovirus infected patients is 45.94% ( 102/222 ),the samples of swallow swab EV71-RNA positive rate is 25.68% (57/222) and the EV71-IgM antibody positive rate of 114 samples of acute phase serum is 86. 84% (99/114). The EV71-RNA positive rate of oropharyngeal swabs of 254 healthy children is 1.57% (4/254), and no CoxA16-RNA was detected. In the oropharyngeal swabs of 54 close contacts (medical personnel), the EV-RNA detected is negative. The positive rate of EV71-lgM antibody of the 258 healthy children's serum samples is 2.71% (7/258).Conclusion The widespreading of hand-foot-mouth disease in Xuzhou district is caused mainly by type 71 enterovirus. Inapparent infection of type 71 enterovirus exists among children under the age of 3 during the time of widespreading period and IgM antibody develops in them. It is difficult for adults to be infected by EV71 even if they contact the contagion source closely. The positive rate of EV71-IgM antibody in the samples of acute phase serum of suspected cases is the highest ( 86.84% ), and the second highest is the positive rate of RNA of EV71 of anal swabs (45.94%) and of the EV71 of oropharyngeal swabs (25.68%). ELA reagent kit is used in the early diagnosis of EV71 infection for it is easy to operate, fast and economic, so, it is worth popularizing in the grass-root medical units.
Keywords:
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号