H7N6 low pathogenic avian influenza outbreak in commercial turkey farms in Chile caused by a native South American Lineage

Mathieu, C; Gonzalez, A; Garcia, A; Johow, M; Badia, C; Jara, C; Nuñez, P; Neira, V; Montiel, NA; Killian, ML; Brito, BP

H7N6 low pathogenic avian influenza outbreak in commercial turkey farms in Chile caused by a native South American Lineage

Mathieu, C Gonzalez, A Garcia, A Johow, M Badia, C Jara, C Nuñez, P Neira, V

Montiel, NA Killian, ML Brito, BP

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Publication Type:: Journal Article
Citation:: Transboundary and Emerging Diseases, 2019
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Mathieu, C	en_US
dc.contributor.author	Gonzalez, A	en_US
dc.contributor.author	Garcia, A	en_US
dc.contributor.author	Johow, M	en_US
dc.contributor.author	Badia, C	en_US
dc.contributor.author	Jara, C	en_US
dc.contributor.author	Nuñez, P	en_US
dc.contributor.author	Neira, V https://orcid.org/0000-0001-9062-9969	en_US
dc.contributor.author	Montiel, NA	en_US
dc.contributor.author	Killian, ML	en_US
dc.contributor.author	Brito, BP https://orcid.org/0000-0001-6122-2596	en_US
dc.date.available	2019-03-01	en_US
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	Transboundary and Emerging Diseases, 2019	en_US
dc.identifier.issn	1865-1674	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133816
dc.description.abstract	© 2019 Blackwell Verlag GmbH In December 2016, low pathogenic avian influenza (LPAI) caused by an H7N6 subtype was confirmed in a grow-out turkey farm located in Valparaiso Region, Chile. Depopulation of exposed animals, zoning, animal movement control and active surveillance were implemented to contain the outbreak. Two weeks later, a second grow-out turkey farm located 70 km north of the first site was also infected by H7N6 LPAI, which subsequently spilled over to one backyard poultry flock. The virus involved in the outbreak shared a close genetic relationship with Chilean aquatic birds’ viruses collected in previous years. The A/turkey/Chile/2017(H7N6) LPAI virus belonged to a native South American lineage. Based on the H7 and most of the internal genes’ phylogenies, these viruses were also closely related to the ones that caused a highly pathogenic avian influenza outbreak in Chile in 2002. Results from this study help to understand the regional dynamics of influenza outbreaks, highlighting the importance of local native viruses circulating in the natural reservoir hosts.	en_US
dc.relation.ispartof	Transboundary and Emerging Diseases	en_US
dc.relation.isbasedon	10.1111/tbed.13166	en_US
dc.subject.classification	Veterinary Sciences	en_US
dc.title	H7N6 low pathogenic avian influenza outbreak in commercial turkey farms in Chile caused by a native South American Lineage	en_US
dc.type	Journal Article
utslib.for	0707 Veterinary Sciences	en_US
utslib.for	1117 Public Health and Health Services	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - ithree - Institute of Infection, Immunity and Innovation
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US

Abstract:

© 2019 Blackwell Verlag GmbH In December 2016, low pathogenic avian influenza (LPAI) caused by an H7N6 subtype was confirmed in a grow-out turkey farm located in Valparaiso Region, Chile. Depopulation of exposed animals, zoning, animal movement control and active surveillance were implemented to contain the outbreak. Two weeks later, a second grow-out turkey farm located 70 km north of the first site was also infected by H7N6 LPAI, which subsequently spilled over to one backyard poultry flock. The virus involved in the outbreak shared a close genetic relationship with Chilean aquatic birds’ viruses collected in previous years. The A/turkey/Chile/2017(H7N6) LPAI virus belonged to a native South American lineage. Based on the H7 and most of the internal genes’ phylogenies, these viruses were also closely related to the ones that caused a highly pathogenic avian influenza outbreak in Chile in 2002. Results from this study help to understand the regional dynamics of influenza outbreaks, highlighting the importance of local native viruses circulating in the natural reservoir hosts.

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http://hdl.handle.net/10453/133816