摘要
目的分析2014年-2019年临沧市外环境禽流感监测结果,为预防和控制禽流感提供科学依据。方法收集2014年-2019年临沧市外环境禽流感病毒核酸检测结果,采用Excel2016、SPSS22.0软件对监测数据进行统计与分析。结果 2014年-2019年临沧市采集并检测外环境标本568份,检出A型阳性118份,阳性率为20.77%,其中H9亚型83份、H5亚型4份、未分型31份,未检出H7亚型。4类监测场所中活禽市场阳性率最高,为29.07%,监测场所禽流感病毒阳性率差异有统计学意义(χ2=62.24,P <0.01)。不同类型标本中清洗禽类污水样本病毒阳性率最高,达41.38%,不同类型标本的禽流感病毒阳性率差异有统计学意义(χ2=39.60,P <0.01)。不同监测点中阳性率最高为耿马县,达52.0%,不同监测点禽流感病毒阳性率差异有统计学意义(χ2=32.55,P <0.01)。结论临沧市外环境中存在禽流感病毒H9、H5和其他未分型,阳性标本主要来源于活禽市场,是禽流感的高风险场所,应重点监测与防控。
Objective To analyze the external environmental monitoring results of avian influenza in Lincang from 2014 to2019,and to provide scientific basis for the prevention and control of avian influenza. Methods The nucleic acid test results of external environmental avian influenza virus in Lincang were collected from 2014 to 2019,and the monitoring data was analyzed by using software Excel2016 and SPSS22. 0. Results From 2014 to 2019,568 environmental samples were collected and tested in Lincang,118 of which were type A( 20. 77%). Among them,83 samples were detected to be H9 subtype,4 samples were H5 subtype,31 samples were undivided copies. No H7 subtype was detected. The positive rate of live poultry market was29. 07%,which was the highest among four monitoring sites. And the differences in positive rate of avian influenza virus in different monitoring sites was statistically significant( χ2= 62. 24,P < 0. 01). The virus positive rate of cleaning poultry sewage samples in different types of specimens was the highest,reaching 41. 38%. The difference in positive rate of avian influenza virus in diversified types of specimens was statistically significant( χ2= 39. 60,P < 0. 01). The highest positive rate was52. 0% of Gengma County among different monitoring sites,and the difference in positive rate of avian influenza virus among different monitoring sites was statistically significant( χ2= 32. 55,P < 0. 01). Conclusion There are H9,H5 and other unclassified avian influenza viruses in the external environment in Lincang City. The positive samples mainly come from live poultry market,which is the high-risk place for avian influenza. So,it should be mainly monitored and controlled.
作者
李华昌
刘红兵
张汉菊
杨佳佳
杨平
LI Hua-chang;LIU Hong-bing;ZHANG Han-ju;YANG Jia-jia;YANC Ping(Lincang Municipal Center for Disease Control and Prevention,Lincang,Yunnan 677099,China)
出处
《中国卫生检验杂志》
CAS
2021年第6期761-763,766,共4页
Chinese Journal of Health Laboratory Technology
关键词
禽流感
外环境
监测
Avian influenza
External environment
Monitoring
