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3. High Risk of Influenza Virus Infection Among Swine Workers: Examining a Dynamic Cohort in China

Author

Borkenhagen, Laura K, primary, Wang, Guo-Lin, additional, Simmons, Ryan A, additional, Bi, Zhen-Qiang, additional, Lu, Bing, additional, Wang, Xian-Jun, additional, Wang, Chuang-Xin, additional, Chen, Shan-Hui, additional, Song, Shao-Xia, additional, Li, Min, additional, Zhao, Teng, additional, Wu, Meng-Na, additional, Park, Lawrence P, additional, Cao, Wu-Chun, additional, Ma, Mai-Juan, additional, and Gray, Gregory C, additional

Published
2019
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4. High Risk of Influenza Virus Infection Among Swine Workers: Examining a Dynamic Cohort in China.

Author

Borkenhagen, Laura K, Wang, Guo-Lin, Simmons, Ryan A, Bi, Zhen-Qiang, Lu, Bing, Wang, Xian-Jun, Wang, Chuang-Xin, Chen, Shan-Hui, Song, Shao-Xia, Li, Min, Zhao, Teng, Wu, Meng-Na, Park, Lawrence P, Cao, Wu-Chun, Ma, Mai-Juan, and Gray, Gregory C

Subjects
OCCUPATIONAL disease risk factors, AGRICULTURAL laborers, CONFIDENCE intervals, LONGITUDINAL method, PUBLIC health surveillance, RISK assessment, SERODIAGNOSIS, SWINE, VIROLOGY, H1N1 influenza, DESCRIPTIVE statistics, ODDS ratio, DISEASE risk factors
Abstract

Background China is thought to be a hotspot for zoonotic influenza virus emergence, yet there have been few prospective studies examining the occupational risks of such infections. Methods We present the first 2 years of data collected from a 5-year, prospective, cohort study of swine-exposed and -unexposed participants at 6 swine farms in China. We conducted serological and virological surveillance to examine evidence for swine influenza A virus infection in humans. Results Of the 658 participants (521 swine-exposed and 137 swine-unexposed), 207 (31.5%) seroconverted against at least 1 swine influenza virus subtype (swine H1N1 or H3N2). Swine-exposed participants' microneutralization titers, especially those enrolled at confined animal feeding operations (CAFOs), were higher against the swine H1N1 virus than were other participants at 12 and 24 months. Despite elevated titers, among the 187 study subjects for whom we had complete follow-up, participants working at swine CAFOs had significantly greater odds of seroconverting against both the swine H1N1 (odds ratio [OR] 19.16, 95% confidence interval [CI] 3.55–358.65) and swine H3N2 (OR 2.97, 95% CI 1.16–8.01) viruses, compared to unexposed and non-CAFO swine workers with less intense swine exposure. Conclusions While some of the observed increased risk against swine viruses may have been explained by exposure to human influenza strains, study data suggest that even with elevated preexisting antibodies, swine-exposed workers were at high risk of infection with enzootic swine influenza A viruses. [ABSTRACT FROM AUTHOR]

Published
2020
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5. Avian Influenza A Virus Infection among Workers at Live Poultry Markets, China, 2013–2016

Author

Ma, Mai-Juan, primary, Zhao, Teng, additional, Chen, Shan-Hui, additional, Xia, Xian, additional, Yang, Xiao-Xian, additional, Wang, Guo-Lin, additional, Fang, Li-Qun, additional, Ma, Guan-Yuan, additional, Wu, Meng-Na, additional, Qian, Yan-Hua, additional, Dean, Natalie E., additional, Yang, Yang, additional, Lu, Bing, additional, and Cao, Wu-Chun, additional

Published
2018
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6. Evidence for Cross-species Influenza A Virus Transmission Within Swine Farms, China: A One Health, Prospective Cohort Study

Author

Ma, Mai-Juan, primary, Wang, Guo-Lin, additional, Anderson, Benjamin D, additional, Bi, Zhen-Qiang, additional, Lu, Bing, additional, Wang, Xian-Jun, additional, Wang, Chuang-Xin, additional, Chen, Shan-Hui, additional, Qian, Yan-Hua, additional, Song, Shao-Xia, additional, Li, Min, additional, Lednicky, John A, additional, Zhao, Teng, additional, Wu, Meng-Na, additional, Cao, Wu-Chun, additional, and Gray, Gregory C, additional

Published
2017
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7. Evidence for Cross-species Influenza A Virus Transmission within Swine Farms, China

Author

Ma, Mai-Juan, primary, Wang, Guo-Lin, additional, Anderson, Benjamin, additional, Bi, Zhen-Qiang, additional, Lu, Bing, additional, Wang, Xian-Jun, additional, Wang, Chuang-Xin, additional, Chen, Shan-Hui, additional, Qian, Yan-Hua, additional, Song, Shao-Xia, additional, Li, Min, additional, Lednicky, John A, additional, Zhao, Teng, additional, Wu, Meng-Na, additional, Cao, Wu-Chun, additional, and Gray, Gregory, additional

Published
2017
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8. Novel H7N2 and H5N6 Avian Influenza A Viruses in Sentinel Chickens: A Sentinel Chicken Surveillance Study

Author

Zhao, Teng, primary, Qian, Yan-Hua, additional, Chen, Shan-Hui, additional, Wang, Guo-Lin, additional, Wu, Meng-Na, additional, Huang, Yong, additional, Ma, Guang-Yuan, additional, Fang, Li-Qun, additional, Gray, Gregory C., additional, Lu, Bing, additional, Tong, Yi-Gang, additional, Ma, Mai-Juan, additional, and Cao, Wu-Chun, additional

Published
2016
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10. Economic burden and its associated factors of hospitalized patients infected with A (H7N9) virus: a retrospective study in Eastern China, 2013–2014

Author

Huo, Xiang, primary, Chen, Li-Ling, additional, Hong, Lei, additional, Xiang, Lun-Hui, additional, Tang, Fen-Yang, additional, Chen, Shan-Hui, additional, Gao, Qiang, additional, Chen, Cong, additional, Dai, Qi-gang, additional, Sun, Chuan-Wu, additional, Xu, Ke, additional, Dai, Wen-Jun, additional, Qi, Xian, additional, Li, Chang-Cheng, additional, Yu, Hui-Yan, additional, Zhou, Yin, additional, Huang, Hao-Di, additional, Pan, Xing-Yang, additional, Xu, Chang-sha, additional, Zhou, Ming-Hao, additional, and Bao, Chang-Jun, additional

Published
2016
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12. Avian Influenza A Virus Infection among Workers at Live Poultry Markets, China, 2013-2016.

Author

Mai-Juan Ma, Teng Zhao, Shan-Hui Chen, Xian Xia, Xiao-Xian Yang, Guo-Lin Wang, Li-Qun Fang, Guan-Yuan Ma, Meng-Na Wu, Yan-Hua Qian, Dean, Natalie E., Yang Yang, Bing Lu, Wu-Chun Cao, Ma, Mai-Juan, Zhao, Teng, Chen, Shan-Hui, Xia, Xian, Yang, Xiao-Xian, and Wang, Guo-Lin

Subjects
AVIAN influenza A virus, SERODIAGNOSIS, SEROPREVALENCE, DISEASE incidence, VIROLOGY, MICROBIAL diversity, POULTRY farms, DISEASES in agricultural laborers
Abstract

We conducted a 3-year longitudinal serologic survey on an open cohort of poultry workers, swine workers, and general population controls to assess avian influenza A virus (AIV) seroprevalence and seroincidence and virologic diversity at live poultry markets (LPMs) in Wuxi City, Jiangsu Province, China. Of 964 poultry workers, 9 (0.93%) were seropositive for subtype H7N9 virus, 18 (1.87%) for H9N2, and 18 (1.87%) for H5N1. Of 468 poultry workers followed longitudinally, 2 (0.43%), 13 (2.78%), and 7 (1.5%) seroconverted, respectively; incidence was 1.27, 8.28, and 4.46/1,000 person-years for H7N9, H9N2, and H5N1 viruses, respectively. Longitudinal surveillance of AIVs at 9 LPMs revealed high co-circulation of H9, H7, and H5 subtypes. We detected AIVs in 726 (23.3%) of 3,121 samples and identified a high diversity (10 subtypes) of new genetic constellations and reassortant viruses. These data suggest that stronger surveillance for AIVs within LPMs and high-risk populations is imperative. [ABSTRACT FROM AUTHOR]

Published
2018
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15. Characterization of a Novel Reassortant Influenza A Virus (H2N2) from a Domestic Duck in Eastern China

Author

Ma, Mai-Juan, primary, Yang, Xiao-Xian, additional, Qian, Yan-Hua, additional, Zhao, Si-Yan, additional, Hua, Sha, additional, Wang, Tie-Cheng, additional, Chen, Shan-Hui, additional, Ma, Guang-Yuan, additional, Sang, Xiao-Yu, additional, Liu, Lin-Na, additional, Wu, Ai-Ping, additional, Jiang, Tai-Jiao, additional, Gao, Yu-Wei, additional, Gray, Gregory C., additional, Zhao, Teng, additional, Ling, Xia, additional, Wang, Jing-Lin, additional, Lu, Bing, additional, Qian, Jun, additional, and Cao, Wu-Chun, additional

Published
2014
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16. Epidemiological and Clinical Characteristics and Risk Factors for Death of Patients with Avian Influenza A H7N9 Virus Infection from Jiangsu Province, Eastern China

Author

Ji, Hong, primary, Gu, Qin, additional, Chen, Li-ling, additional, Xu, Ke, additional, Ling, Xia, additional, Bao, Chang-jun, additional, Tang, Fen-yang, additional, Qi, Xian, additional, Wu, Ying-qiu, additional, Ai, Jing, additional, Shen, Gu-yu, additional, Dong, Dan-jiang, additional, Yu, Hui-yan, additional, Huang, Mao, additional, Cao, Quan, additional, Xu, Ying, additional, Zhao, Wei, additional, Xu, Yang-ting, additional, Xia, Yu, additional, Chen, Shan-hui, additional, Yang, Gen-lin, additional, Gu, Cai-ling, additional, Xie, Guo-xiang, additional, Zhu, Ye-fei, additional, Zhu, Feng-cai, additional, and Zhou, Ming-hao, additional

Published
2014
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