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Antibodies against avian-like A (H1N1) swine influenza virus among swine farm residents in eastern China

文献类型： 外文期刊

作者： Yin, Xiuchen 1 ; Yin, Xin 2 ; Rao, Baizhong 1 ; Xie, Chunfang 1 ; Zhang, Pengchao 1 ; Qi, Xian 3 ; Wei, Ping 2 ; Liu, Hui 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Shanghai Municipal Key Lab Agrigenet & Breedings, Inst Anim Sci & Vet Med, Shanghai 201106, Peoples R China

2.Northeast Agr Univ, Coll Vet Med, Haerbin, Heilongjiang Pr, Peoples R China

3.Jiangsu Ctr Dis Control & Prevent, Nan Jing, Jiangsu Provinc, Peoples R China

关键词： Avian-like A (H1N1);Swine farm residents;Swine influenza viruses

期刊名称：JOURNAL OF MEDICAL VIROLOGY （ 影响因子：2.327； 五年影响因子：2.075 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： In 2007, the avian-like H1N1 virus (A/swine/Zhejiang/1/07) was first isolated in pigs in China. Recently, it was reported that a 3-year-old boy was infected with avian-like A (H1N1) swine influenza virus (SIV) in Jiangsu Province, China. To investigate the prevalence of avian-like A (H1N1) SIV infection among swine farm residents in eastern China, an active influenza surveillance program was conducted on swine farms in this region from May 21, 2010 through April 22, 2012. A total of 1,162 participants were enrolled, including 1,136 persons from 48 pig farms, as well as 26 pig farm veterinarians. A total of 10.7% and 7.8% swine farm residents were positive for antibodies against avian-like A (H1N1) SIV by HI and NT assay, respectively, using 40 as the cut-off antibody titer. Meanwhile, all the serum samples collected from a control of healthy city residents were negative against avian-like A (H1N1) SIV. As the difference in numbers of antibody positive samples between the swine farm residents and health city residents controls was statistically significant (P=0.002), these data suggest that occupational exposure to pigs may increase swine farm residents' and veterinarians' risk of avian-like A (H1N1) SIV infection in eastern China. This study provides the first data on avian-like A (H1N1) SIV infections in humans in China; the potential for avian-like A (H1N1) SIV entering the human population should also be taken into consideration.

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