2014年浙江省金华市涉禽场所A型流感病毒监测分析 |
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引用本文: | 王凤英,朱军礼,张兵,庞志峰,朱淑英,吴晓虹,章光明. 2014年浙江省金华市涉禽场所A型流感病毒监测分析[J]. 疾病监测, 2015, 30(8): 629-633. DOI: 10.3784/j.issn.1003-9961.2015.08.006 |
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作者姓名: | 王凤英 朱军礼 张兵 庞志峰 朱淑英 吴晓虹 章光明 |
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作者单位: | 1.金华市疾病预防控制中心, 浙江 金华 321002 |
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基金项目: | 浙江省医药卫生科技项目(No.2013KYB279) |
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摘 要: | 目的 了解金华市涉禽场所A型流感病毒分布情况,评估人感染禽流感风险,为人禽流感防控工作提供科学依据。 方法 选取全市155个涉禽场所,采集6类环境标本1445份,采用聚合酶链反应方法检测A型流感病毒,使用2检验对检测结果进行分析。 结果 全市10个县(市、区)A型流感病毒场所阳性率为50.97%,标本阳性率为26.44%。4类涉禽场所中,禽交易市场标本阳性率为33.94%,均高于规模禽养殖场、禽散养村和野生候鸟栖息地(均P 0.01)。6类环境标本中,其他类型(肺、肠等禽内脏废弃物)、禽宰杀加工清洗污水、禽宰杀加工器具涂抹物的阳性率均高于禽粪便、禽饮水、养禽笼具表面涂抹物(均P 0.01)。全市10个县(市、区)环境标本均有A型流感病毒检出,冬春季A型流感阳性率高于夏秋季(2=46.490,P 0.01)。城乡禽交易市场A型流感阳性率差异无统计学意义(2=0.040,P 0.01)。 结论 金华市城乡禽交易市场、禽宰杀环节和冬春季A型流感病毒检出率较高,存在人感染风险。冬春季加强禽交易市场监管,落实检疫准入、消毒、休市、关闭等措施,推广禽类杀白上市模式,是降低人禽流感发生风险的关键。
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关 键 词: | 涉禽场所 A型流感病毒 核酸检测 |
收稿时间: | 2015-05-13 |
Surveillance for influenza A virus in poultry related environments in Jinhua,Zhejiang,2014 |
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Affiliation: | 1.Jinhua Prefecture Center for Disease Control and Prevention, Jinhua 321002, Zhejiang, China |
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Abstract: | Objective To understand distribution of influenza A virus in poultry related environments in Jinhua, assess potential risk of human infection with avian influenza virus, and provide evidence for the for prevention and control of the disease. Methods The survey was conducted in 155 poultry related sites in Jinhua, and 6 types of environmental samples were collected for detection of influenza A virus with real-time PCR. The results were analyzed with SPSS 17.0. Results Influenza A virus was detected in 50.97% of the 155 poultry related sites. A total of 1445 samples collected from these sites were detected, the positive rate of influenza A virus was 26.44%. Among four types of poultry related sites, the positive rate in alive poultry markets was 33.60%, which was higher than that in large scale poultry farms, free range villages and wild migratory bird habitats (P 0.01). Among six types of environmental samples, the positive rates of poultry's internal organs, polluted water after washing poultry and smears of tools used for poultry processing were higher that those of poultry stool, poultry drinking water and smears of poultry cage surfaces (P 0.001). Influenza A virus was detected in the samples collected from all the 10 counties (district). The positive rate during winter-spring was higher than that during summer-autumn (2=46.490,P 0.01). There was no statistically difference in the positive rate in alive poultry markets between urban area and rural area (2=0.040, P 0.01). Conclusion Influenza A virus can be detected in alive poultry markets, in slaughtering process and during winter-spring in Jinhua. The potential risk of human infection with avian influenza virus exists. It is necessary to strengthen the management and supervision of alive poultry markets during winter-spring, such as quarantine, disinfection and market closure, and promote the selling of processed poultry products to reduce the incidence of human infection with avian influenza virus. |
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