Exposure Practices to Animal-Origin Influenza A Virus at the Animal-Human Interface in Poultry and Swine Backyard Farms

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dc.contributor.authorBaumberger, Cecilia
dc.contributor.authorAnriquez, Gustavo
dc.contributor.authorGaldames, Pablo
dc.contributor.authorPalma, Tamara
dc.contributor.authorGonzalez, Maria Antonieta
dc.contributor.authorOrozco, Katherinne
dc.contributor.authorOyarzun, Cristobal
dc.contributor.authorRojas, Camila
dc.contributor.authorMarambio, Victor
dc.contributor.authorRuiz, Soledad
dc.contributor.authorDi Pillo, Francisca
dc.contributor.authorSchultz-Cherry, Stacey
dc.contributor.authorJimenez-Bluhm, Pedro
dc.contributor.authorRushton, Jonathan
dc.contributor.authorHamilton-West, Christopher
dc.date.accessioned2025-01-20T16:08:14Z
dc.date.available2025-01-20T16:08:14Z
dc.date.issued2024
dc.description.abstractAim: Backyard production systems (BPS) represent an interface of contact between people, domestic and wild animals. Studies conducted in Chile during the last decade have provided extensive evidence of influenza A virus (IAV) circulation in backyard poultry and swine. The aim of this study was to investigate exposure practices of humans to animal-origin IAV within backyards. Methods and Results: Backyard farmers and household members of a total of 101 BPS in the proximity of wetlands located throughout Chile were interviewed between 2021 and 2022. Data were collected on the nature of human-animal contacts through participation in productive activities conducted within backyards, which was used to estimate participants' exposure risk to animal-origin IAV. Additionally, RT-qPCR and serologic IAV active surveillance was carried out in backyard animals. Multilinear regression was used to identify factors associated with exposure risk. Overall, IAV prevalence was 10.1% (95% CI: 4.7%-15.5%) and seroprevalence was 43.5% (95% CI: 29.7%-54.2%), both at the BPS level. Of 180 interviewees, 86% reported par-ticipating regularly in poultry or swine exposure activities within the backyard. A greater participation of male participants was observed when evaluating swine exposure activities, while female participation was greater for some activities related to poultry handling. Handwashing was a very extended hygiene practice; however, the use of personal protective equipment was uncom-mon. Different factors related to participants, households and backyards were associated with an increased exposure risk of participants to animal-origin IAV: (i) older age, (ii) less years of education, (iii) no off-farm work, (iv) greater backyard production value and (v) greater household consumption of backyard products.
dc.description.funderUniversidad de Las Amricas Chile
dc.fuente.origenWOS
dc.identifier.doi10.1111/zph.13182
dc.identifier.eissn1863-2378
dc.identifier.issn1863-1959
dc.identifier.urihttps://doi.org/10.1111/zph.13182
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90061
dc.identifier.wosidWOS:001317209900001
dc.language.isoen
dc.revistaZoonoses and public health
dc.rightsacceso restringido
dc.subjectbackyards
dc.subjectChile
dc.subjectexposure risk
dc.subjectinfluenza virus
dc.subjectpoultry
dc.subjectswine
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleExposure Practices to Animal-Origin Influenza A Virus at the Animal-Human Interface in Poultry and Swine Backyard Farms
dc.typeartículo
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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