Presence of influenza viruses in backyard poultry and swine in El Yali wetland, Chile

Bravo-Vasquez, Nicolás; Pillo, Francisca Di; Lazo, Andres; Jimenez‐Bluhm, Pedro; Schultz‐Cherry, Stacey; Hamilton‐West, Christopher

doi:10.1016/j.prevetmed.2016.10.004

Cited by 36 publications

(48 citation statements)

References 24 publications

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“…Furthermore, Wong et al (2017) describes that when smallscale poultry productions are reared by women, this increased their empowerment and will in turn enhance household food security. Altogether, some deficiencies in biosecurity measures observed in this study, such as lack of confinement, lack of veterinary assistance, incorrect handling of dead birds, among others, are consistent with other international (Harvey et al, 2003;Rola et al, 2003;Chang, 2004;Mandal et al, 2006;Chatterjee et al, 2007;Garber et al, 2007;Madsen et al, 2013) and national studies (Hamilton-West et al, 2012;Bravo-Vasquez et al, 2016).…”

Section: Discussionsupporting

confidence: 88%

“…Concerningly, Bravo-Vasquez et al (2016) identified the presence of influenza A virus in BPS in central Chile, with seroprevalence ranging from 42 to 60% at BPS level while Jimenez-Bluhm et al (2018a) found that influenza virus positivity by real-time RT-PCR (qRTPCR) ranged from 0% to 45.8% at the farm level. Furthermore, influenza virus has been isolated in pigs in BPS in Chile; results that are very interesting as the isolated virus was a swine-human reassortant that could represent a potential threat to public health (Bravo-Vasquez et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

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Backyard poultry production in Chile: animal health management and contribution to food access in an upper middle-income country

Pillo

Anríquez

Alarcón

et al. 2019

Preventive Veterinary Medicine

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Backyard poultry production in Chile: animal health management and contribution to food access in an upper middle-income country

Pillo

Anríquez

Alarcón

et al. 2019

Preventive Veterinary Medicine

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“…A large number of wetlands throughout the extensive Chilean coast, provides an ecosystem where migratory and local wild water birds (including the main avian influenza reservoirs) co-exist (Jimenez-Bluhm et al, 2018). Small backyard production systems are also constantly exposed to transmission from wild birds and are, likely, sporadically infected (Bravo-Vasquez et al, 2016), representing another potential source of AIV for commercial farms. Additionally, transmission from human or other species also pose a risk for influenza outbreaks in poultry, such as the pH1N1 introduced from human into a commercial turkey farm in Chile in 2009 (Mathieu et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, several influenza subtypes have been detected in Chilean wild birds, including H5 and H7 subtypes, highlighting the risk for poultry production (Bravo-Vasquez et al, 2016;Jimenez-Bluhm et al, 2018;Mathieu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

H7N6 Low Pathogenic Avian Influenza outbreak in commercial turkey farms in Chile caused by a native South American Lineage

Mathieu¹,

González²,

García³

et al. 2019

Preprint

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In December of 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 turkey grow-out 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 viruses collected from Chilean aquatic birds' viruses. 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 viruses that caused a highly pathogenic avian influenza outbreak in Chile in 2002. Results from this study help understand the regional dynamics of influenza outbreaks, highlighting the importance of local native viruses circulating in the natural reservoir hosts.

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“…Another study reported the prevalence of H1N2 virus in swine reared at 40 different BPS having poultry and swine in El Yali wetland during 2013-2014 [333]. One more study identified four swine sera samples (4/64; 6.3%) that were found positive for IAV antibodies collected from different BPS in Central Chile.…”

Section: Chilementioning

confidence: 99%

A Systematic Review Analyzing the Prevalence and Circulation of Influenza Viruses in Swine Population Worldwide

Chauhan

Gordon

2020

Pathogens

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The global anxiety and a significant threat to public health due to the current COVID-19 pandemic reiterate the need for active surveillance for the zoonotic virus diseases of pandemic potential. Influenza virus due to its wide host range and zoonotic potential poses such a significant threat to public health. Swine serve as a "mixing vessel" for influenza virus reassortment and evolution which as a result may facilitate the emergence of new strains or subtypes of zoonotic potential. In this context, the currently available scientific data hold a high significance to unravel influenza virus epidemiology and evolution. With this objective, the current systematic review summarizes the original research articles and case reports of all the four types of influenza viruses reported in swine populations worldwide. A total of 281 articles were found eligible through screening of PubMed and Google Scholar databases and hence were included in this systematic review. The highest number of research articles (n = 107) were reported from Asia, followed by Americas (n = 97), Europe (n = 55), Africa (n = 18),

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Presence of influenza viruses in backyard poultry and swine in El Yali wetland, Chile

Cited by 36 publications

References 24 publications

Backyard poultry production in Chile: animal health management and contribution to food access in an upper middle-income country

Backyard poultry production in Chile: animal health management and contribution to food access in an upper middle-income country

H7N6 Low Pathogenic Avian Influenza outbreak in commercial turkey farms in Chile caused by a native South American Lineage

A Systematic Review Analyzing the Prevalence and Circulation of Influenza Viruses in Swine Population Worldwide

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