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Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea

BACKGROUND: South Korea conducts annual national surveillance programs to detect avian influenza (AI) in domestic poultry, live bird markets, and wild birds. In March 2017, an AIV was isolated from fecal samples in an outdoor aviary flight cage in a zoo in Korea. RESULTS: Nucleotide sequencing ident...

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Autores principales: Si, Young-Jae, Lee, Yu-Na, Cheon, Sun-Ha, Park, Yu-Ri, Baek, Yoon-Gi, Kye, Soo-Jeong, Lee, Myoung-Heon, Lee, Youn-Jeong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7653808/
https://www.ncbi.nlm.nih.gov/pubmed/33167987
http://dx.doi.org/10.1186/s12917-020-02645-4
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author Si, Young-Jae
Lee, Yu-Na
Cheon, Sun-Ha
Park, Yu-Ri
Baek, Yoon-Gi
Kye, Soo-Jeong
Lee, Myoung-Heon
Lee, Youn-Jeong
author_facet Si, Young-Jae
Lee, Yu-Na
Cheon, Sun-Ha
Park, Yu-Ri
Baek, Yoon-Gi
Kye, Soo-Jeong
Lee, Myoung-Heon
Lee, Youn-Jeong
author_sort Si, Young-Jae
collection PubMed
description BACKGROUND: South Korea conducts annual national surveillance programs to detect avian influenza (AI) in domestic poultry, live bird markets, and wild birds. In March 2017, an AIV was isolated from fecal samples in an outdoor aviary flight cage in a zoo in Korea. RESULTS: Nucleotide sequencing identified the isolate as low pathogenic avian influenza virus (LPAIV) H7N7, and DNA barcoding analysis identified the host species as red-crowned crane. This isolate was designated A/red-crowned crane/Korea/H1026/2017 (H7N7). Genetic analysis and gene constellation analysis revealed that A/red-crowned crane/Korea/H1026/2017 (H7N7) showed high similarity with four H7N7 LPAIVs isolated from wild bird habitats in Seoul and Gyeonggi in early 2017. CONCLUSIONS: Considering the genetic similarity and similar collection dates of the viruses, and the fact that zoo bird cages are vulnerable to AIV, it is likely that fecal contamination from wild birds might have introduced LPAIV H7N7 into the red-crowned crane at the zoo. Therefore, our results emphasize that enhanced biosecurity measures should be employed during the wild bird migration season, and that continued surveillance should be undertaken to prevent potential threats to avian species in zoos and to humans. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12917-020-02645-4.
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spelling pubmed-76538082020-11-16 Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea Si, Young-Jae Lee, Yu-Na Cheon, Sun-Ha Park, Yu-Ri Baek, Yoon-Gi Kye, Soo-Jeong Lee, Myoung-Heon Lee, Youn-Jeong BMC Vet Res Research Article BACKGROUND: South Korea conducts annual national surveillance programs to detect avian influenza (AI) in domestic poultry, live bird markets, and wild birds. In March 2017, an AIV was isolated from fecal samples in an outdoor aviary flight cage in a zoo in Korea. RESULTS: Nucleotide sequencing identified the isolate as low pathogenic avian influenza virus (LPAIV) H7N7, and DNA barcoding analysis identified the host species as red-crowned crane. This isolate was designated A/red-crowned crane/Korea/H1026/2017 (H7N7). Genetic analysis and gene constellation analysis revealed that A/red-crowned crane/Korea/H1026/2017 (H7N7) showed high similarity with four H7N7 LPAIVs isolated from wild bird habitats in Seoul and Gyeonggi in early 2017. CONCLUSIONS: Considering the genetic similarity and similar collection dates of the viruses, and the fact that zoo bird cages are vulnerable to AIV, it is likely that fecal contamination from wild birds might have introduced LPAIV H7N7 into the red-crowned crane at the zoo. Therefore, our results emphasize that enhanced biosecurity measures should be employed during the wild bird migration season, and that continued surveillance should be undertaken to prevent potential threats to avian species in zoos and to humans. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12917-020-02645-4. BioMed Central 2020-11-10 /pmc/articles/PMC7653808/ /pubmed/33167987 http://dx.doi.org/10.1186/s12917-020-02645-4 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
Si, Young-Jae
Lee, Yu-Na
Cheon, Sun-Ha
Park, Yu-Ri
Baek, Yoon-Gi
Kye, Soo-Jeong
Lee, Myoung-Heon
Lee, Youn-Jeong
Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea
title Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea
title_full Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea
title_fullStr Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea
title_full_unstemmed Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea
title_short Isolation and characterization of low pathogenic H7N7 avian influenza virus from a red-crowned crane in a zoo in South Korea
title_sort isolation and characterization of low pathogenic h7n7 avian influenza virus from a red-crowned crane in a zoo in south korea
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7653808/
https://www.ncbi.nlm.nih.gov/pubmed/33167987
http://dx.doi.org/10.1186/s12917-020-02645-4
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