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Communication

Avian Influenza Virus Prevalence and Subtype Diversity in Wild Birds in Shanghai, China, 2016–2018

1
Laboratory of Wildlife Epidemic Diseases, School of Life Sciences, East China Normal University, No. 3663, North Zhongshan Rd, Shanghai 200063, China
2
Shanghai Wildlife Conservation and Management Center, Shanghai 200072, China
3
Institute of Eco-Chongming (IEC), East China Normal University, Shanghai 202162, China
*
Authors to whom correspondence should be addressed.
Received: 31 July 2020 / Revised: 7 September 2020 / Accepted: 14 September 2020 / Published: 16 September 2020
(This article belongs to the Section Animal Viruses)
From 2016 to 2018, surveillance of influenza A viruses in wild birds was conducted in Shanghai, located at the East Asian–Australian flyway, China. A total of 5112 samples from 51 species of wild birds were collected from three different wetlands. The total three-year prevalence of influenza A viruses among them was 8.8%, as assessed using real-time polymerase chain reaction (PCR) methods, and the total prevalence was higher in Anseriformes (26.3%) than in the Charadriiformes (2.3%) and the other orders (2.4%) in the Chongmin wetlands. Anseriformes should be the key monitoring group in future surveillance efforts. The peak prevalence of influenza A viruses in Charadriiformes were in April and September, and in other bird orders, the peaks were in November and December. Twelve subtypes of haemagglutinin (HA; H1–H12) and eight subtypes of neuraminidase (NA; N1, N2, N4–N9) were identified in 21 different combinations. The greatest subtype diversity could be found in common teal, suggesting that this species of the bird might play an important role in the ecology and epidemiology of influenza A viruses in Shanghai. These results will increase our understanding of the ecology and epidemiology of influenza A viruses in wild bird hosts in eastern China, and provide references for subsequent surveillance of influenza A virus in wild birds in this area. View Full-Text
Keywords: influenza A virus; surveillance; wild birds; Eastern China influenza A virus; surveillance; wild birds; Eastern China
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MDPI and ACS Style

Tang, L.; Tang, W.; Li, X.; Hu, C.; Wu, D.; Wang, T.; He, G. Avian Influenza Virus Prevalence and Subtype Diversity in Wild Birds in Shanghai, China, 2016–2018. Viruses 2020, 12, 1031. https://0-doi-org.brum.beds.ac.uk/10.3390/v12091031

AMA Style

Tang L, Tang W, Li X, Hu C, Wu D, Wang T, He G. Avian Influenza Virus Prevalence and Subtype Diversity in Wild Birds in Shanghai, China, 2016–2018. Viruses. 2020; 12(9):1031. https://0-doi-org.brum.beds.ac.uk/10.3390/v12091031

Chicago/Turabian Style

Tang, Ling, Wangjun Tang, Xiaofang Li, Chuanxia Hu, Di Wu, Tianhou Wang, and Guimei He. 2020. "Avian Influenza Virus Prevalence and Subtype Diversity in Wild Birds in Shanghai, China, 2016–2018" Viruses 12, no. 9: 1031. https://0-doi-org.brum.beds.ac.uk/10.3390/v12091031

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