摘要
目的了解浙江省衢州市禽类及职业暴露人群A型禽流感病毒(aivan influenza virus,AIV)的感染现状,以期为衢州市人感染高致病性禽流感的防控提供技术支持。方法对衢州市2009—2012年采集132份职业暴露人群血清和231份禽类外环境标本进行AIV检测,并分析H9、H5亚型。结果 132份暴露人群血清H9亚型总阳性率为3.79%,以禽类交易场所最高,达10.53%,未检测出H5亚型;外环境标本中不同场所AIV、H5、H9亚型总阳性率分别为23.38%、3.46%和17.75%,禽类交易场所AIV阳性率高于规模化养殖场,H5、H9亚型阳性率差异无统计学意义;不同种类环境标本中禽类饮用水AIV阳性率分别高于粪便和笼具涂抹样;H9亚型阳性率禽类饮用水分别高于笼具表面和粪便,同时,污血也高于粪便,H5亚型阳性率差异无统计学意义。结论衢州市禽类中存在H5、H9亚型的感染,且交易场所人员感染AIV的风险高于规模化养殖场,应做好重点人群的预防控制,防止人感染H5N1。
Objective To understand the infection status of avian influenza virus in poultry and people with occupational exposure in Quzhou, Zhejiang province, and provide evidence for the prevention and control of human infection with avian influenza virus. Methods Totally 132 blood samples collected from people with occupational exposure and 231 out-environment samples were tested for avian influenza A viruses subtype H9 and H5 in Quzhou from 2009 to 2012. Results The overall positive rate of subtype H9 in 132 blood samples was 3.79%, the positive rate in people working in poultry markets was highest （10. 53% ）. No subtype H5 was detected. In out-environment samples, the overall positive rate of avian influenza virus was 23.38%, and the positive rates of subtype H5 and H9 were 3.46% and 17.75% respectively. The positive rate of avian influenza virus was higher in poultry markets than in poultry farms, the difference in positive rate between subtype H5 and subtype H9 had no statistical significance. The positive rate of avian influenza virus in poultry drinking water samples was higher than feces and cage smears. The detection rate of subtype H9 was higher in drinking water samples than in feces and cage smears and in contaminated blood than in feces. The difference in subtype H5 detection rate had no statistical significance. Conclusion The infections of avian influenza A viruses subtype H9 and H5 were detected in poultry in Quzhou. The people engaged in poultry trade are at high risk to be infected. It is necessary to strengthen the prevention and control of human infection with avian influenza virus.
出处
《疾病监测》
CAS
2013年第11期884-887,共4页
Disease Surveillance
关键词
禽流感病毒
H5
H9
监测
avian influenza virus
H5
H9
surveillance
