About: Movement and contact patterns of long-distance free-grazing ducks and avian influenza persistence in Vietnam

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About: Movement and contact patterns of long-distance free-grazing ducks and avian influenza persistence in Vietnam Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Movement and contact patterns of long-distance free-grazing ducks and avian influenza persistence in Vietnam
Creator	Meyer, Anne Vergne, Timothée Newman, Scott Dinh, Xuan Nguyen, Thanh Pham, Long Thi, Thuy Udo Pfeiffer, Dirk Van Nhu, Thu
Source	PMC
abstract	Presence of ducks, and in particular of free-grazing ducks, has consistently been shown to be one of the most important risk factors for highly pathogenic avian influenza outbreaks which has compromised poultry production in South-East Asia since the early 2000s and continues to threaten public health, farmers’ livelihood and food security. Although free-grazing duck production has been practised for decades in South-East Asia, there are few published studies describing this production system, which is suspected to play an important role in the maintenance of avian influenza viruses. This study aimed at describing quantitatively the long-distance free-grazing duck production system in South Vietnam, characterising the movement and contact patterns of the duck flocks, and identifying potential associations between farming practices, movement and contact patterns and the circulation of avian influenza viruses. We conducted interviews among stakeholders involved in the free-grazing duck production system (duck farmers, transporters and rice paddy owners) in combination with a virological cross-sectional survey in South Vietnam. Results show that both direct and indirect contacts between free-grazing duck flocks were frequent and diverse. The flocks were transported extensively across district and province boundaries, mainly by boat but also by truck or on foot. A third of the investigated flocks had a positive influenza A virology test, indicating current circulation of avian influenza viruses, but none were positive for H5 subtypes. The age and size of the flock as well as its location at the time of sampling were associated with the risk of influenza A circulation in the flocks. These findings should be considered when developing risk assessment models of influenza virus spread aimed at informing the development of improved biosecurity practices leading to enhanced animal health, sustainable animal production and reliable income for farmers.
has issue date	2017-06-20(xsd:dateTime)
bibo:doi	10.1371/journal.pone.0178241
bibo:pmid	28632789
has license	cc-by
sha1sum (hex)	589fe7dd846e7bbab5e7d6dacf7fab2ca6c4f340
schema:url	https://doi.org/10.1371/journal.pone.0178241
resource representing a document's title	Movement and contact patterns of long-distance free-grazing ducks and avian influenza persistence in Vietnam
has PubMed Central identifier	PMC5478089
has PubMed identifier	28632789
schema:publication	PLoS One
resource representing a document's body	covid:589fe7dd846e7bbab5e7d6dacf7fab2ca6c4f340#body_text
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