Complete Genomic Sequence of a Novel Reassortant H11N3 Influenza Virus Isolated from Domestic Ducks in Jiangsu, China

Chen, Chuanxiang; Zhao, Guo; Gu, Xing; Gu, Minghong; Hu, Jiao; Li, Q.; Zhao, Qin; Wang, X.; Liu, X.

doi:10.1128/jvi.02167-12

Cited by 7 publications

(7 citation statements)

References 11 publications

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“…Reassortments between influenza A(H11N9) viruses from Asia and influenza A(H1N3 and H7N3) viruses circulating in live-poultry markets in Zhejiang Province were documented in domestic duck in 2011 in nearby Jiangsu Province (A/duck/Jiangsu/10-d4/2011(H1N3) ( 10 ) In a similar fashion, influenza A(H7N9) virus could have resulted from silent circulation and reassortment between influenza (H7N3 and H11N9) viruses in live-poultry markets in the Shanghai region.…”

Section: Discussionmentioning

confidence: 99%

Evolution of Influenza A Virus H7 and N9 Subtypes, Eastern Asia

Lebarbenchon¹,

Brown²,

Stallknecht³

2013

Emerg. Infect. Dis.

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Section: Discussionmentioning

confidence: 99%

Evolution of Influenza A Virus H7 and N9 Subtypes, Eastern Asia

Lebarbenchon¹,

Brown²,

Stallknecht³

2013

Emerg. Infect. Dis.

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“…In particular, H5 and H7 strains are considered the most relevant for the poultry industry due to their potential for high pathogenicity to chickens, whereas H1, H3, H5 and H7 strains have been documented to cause disease in humans, and recent H5N1 and H7N9 epidemics have resulted in significant human morbidity and mortality [ 4 ]. On the other hand, even though H11 strains have been shown to infect humans who have frequent contact with infected birds [ 5 , 6 ], this subtype seems primarily associated with birds and has not been associated with signs of illness or mortality in any hosts [ 7 – 10 ].…”

Section: Introductionmentioning

confidence: 99%

Molecular Characterization of Subtype H11N9 Avian Influenza Virus Isolated from Shorebirds in Brazil

et al. 2015

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Migratory aquatic birds play an important role in the maintenance and spread of avian influenza viruses (AIV). Many species of aquatic migratory birds tend to use similar migration routes, also known as flyways, which serve as important circuits for the dissemination of AIV. In recent years there has been extensive surveillance of the virus in aquatic birds in the Northern Hemisphere; however in contrast only a few studies have been attempted to detect AIV in wild birds in South America. There are major flyways connecting South America to Central and North America, whereas avian migration routes between South America and the remaining continents are uncommon. As a result, it has been hypothesized that South American AIV strains would be most closely related to the strains from North America than to those from other regions in the world. We characterized the full genome of three AIV subtype H11N9 isolates obtained from ruddy turnstones (Arenaria interpres) on the Amazon coast of Brazil. For all gene segments, all three strains consistently clustered together within evolutionary lineages of AIV that had been previously described from aquatic birds in North America. In particular, the H11N9 isolates were remarkably closely related to AIV strains from shorebirds sampled at the Delaware Bay region, on the Northeastern coast of the USA, more than 5000 km away from where the isolates were retrieved. Additionally, there was also evidence of genetic similarity to AIV strains from ducks and teals from interior USA and Canada. These findings corroborate that migratory flyways of aquatic birds play an important role in determining the genetic structure of AIV in the Western hemisphere, with a strong epidemiological connectivity between North and South America.

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“…In addition, IAV‐H11N6 had been reported to infect pigs in South Korea 10 . The IAV‐H11 viruses (H11N2, H11N3, and H11N9) have been reported in domestic ducks from live bird markets in China 11–13 …”

Section: Introductionmentioning

confidence: 99%

Genetic characterization of influenza A virus subtypes H11N6, H11N7, and H11N9 isolated from free‐grazing ducks, Thailand

Chaiyawong

Charoenkul

Udom

et al. 2022

Influenza Resp Viruses

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Influenza A viruses (IAVs) infect avian species and several mammalian species including humans. Anseriformes water birds are an important reservoir of IAVs. In this study, we identified and characterized IAV subtypes H11N6 (n = 5), H11N7 (n = 3), and H11N9 (n = 3) isolated during the influenza surveillance program in free‐grazing ducks from 2012 to 2015 in Thailand. Eleven IAV‐H11 viruses were characterized by either whole genome sequencing (n = 5) or HA and NA gene sequencing (n = 6) for phylogenetic and amino acid analyses. Phylogenetic analysis showed that Thai IAV‐H11 were grouped into Avian Eurasian lineage. Amino acid analysis showed that all Thai IAV‐H11 viruses have low pathogenic avian influenza (LPAI) characteristics and sensitive to Oseltamivir and Amantadine. Novel reassortant viruses (IAV‐H11N7 and IAV‐H11N9) have been observed. The reassortant viruses contained NP, M, and NS gene segments which originate from intercontinental sources which never been reported in Thai IAVs. In summary, this study demonstrated high genetic diversity of IAV‐H11 circulating in free‐grazing ducks. Free‐grazing ducks infected with IAVs generated novel reassortant IAV‐H11. Thus, surveillance of IAVs in free‐grazing ducks should be routinely conducted to monitor novel reassortant viruses and subsequently potential virulence viruses.

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Complete Genomic Sequence of a Novel Reassortant H11N3 Influenza Virus Isolated from Domestic Ducks in Jiangsu, China

Cited by 7 publications

References 11 publications

Evolution of Influenza A Virus H7 and N9 Subtypes, Eastern Asia

Evolution of Influenza A Virus H7 and N9 Subtypes, Eastern Asia

Molecular Characterization of Subtype H11N9 Avian Influenza Virus Isolated from Shorebirds in Brazil

Genetic characterization of influenza A virus subtypes H11N6, H11N7, and H11N9 isolated from free‐grazing ducks, Thailand

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