Anthropogenic factors and the risk of highly pathogenic avian influenza H5N1: prospects from a spatial-based model

Autor: Saraya Tavornpanich, Weerapong Thanapongtharm, Xiangming Xiao, Patrick Gasqui, François Roger, David Abrial, Myriam Charras-Garrido, Christian Ducrot, Mathilde Paul, Marius Gilbert
Přispěvatelé: Unité de Recherche d'Épidémiologie Animale (UR EpiA), Institut National de la Recherche Agronomique (INRA), Animal et gestion intégrée des risques (UPR AGIRs), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Department of Livestock Development, Department of Botany and Microbiology, Center for Spatial Analysis, University of Oklahoma, Université libre de Bruxelles (ULB)
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Veterinary medicine
Epidemiology
animal diseases
Avian influenza
medicine.disease_cause
L73 - Maladies des animaux
Poultry
0403 veterinary science
Grippe aviaire
Risk Factors
[SDV.BC.IC]Life Sciences [q-bio]/Cellular Biology/Cell Behavior [q-bio.CB]
Influenza A virus
Human Activities
Socioeconomics
2. Zero hunger
0303 health sciences
[SDV.BA]Life Sciences [q-bio]/Animal biology
Poultry farming
virus diseases
Agriculture
04 agricultural and veterinary sciences
Sciences bio-médicales et agricoles
Risk factor (computing)
Thailand
3. Good health
Spatial heterogeneity
Épidémiologie
[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology
poultry farming
[SDV.IMM]Life Sciences [q-bio]/Immunology
Original Article
epidemiology
[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]
Viande de volaille
spatial analysis
040301 veterinary sciences
Highly pathogenic
Gestion du risque
Évaluation du risque
[SDV.BC]Life Sciences [q-bio]/Cellular Biology
Biology
03 medical and health sciences
medicine
Animals
Influenzavirus aviaire
030304 developmental biology
Sirolimus
Thailand -- epidemiology
General Veterinary
Influenza A Virus
H5N1 Subtype

Spatial analysis
Impact sur l'environnement
Outbreak
L70 - Sciences et hygiène vétérinaires - Considérations générales
[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry
Molecular Biology/Molecular biology

Influenza A virus subtype H5N1
ANALYSE SPATIALE
EPIDEMIOLOGIE ANIMALE
VIRUS
SPATIAL ANALYSIS
POULTRY FARMING
OISEAU
THAÏLANDE
ASIE
AVIAN INFLUENZA
EPIDEMIOLOGY
Sirolimus -- analogs & derivatives
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics
Relative risk
Influenza in Birds
Weak association
[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie
avian influenza
Élevage de volailles
Influenza in Birds -- epidemiology -- transmission -- virology
Zdroj: Veterinary Research
Veterinary Research, BioMed Central, 2010, 41 (3), pp.28-42. ⟨10.1051/vetres/2009076⟩
Veterinary Research 3 (41), 28-42. (2010)
Veterinary research, 41 (3
ISSN: 0928-4249
1297-9716
DOI: 10.1051/vetres/2009076⟩
Popis: Beginning in 2003, highly pathogenic avian influenza (HPAI) H5N1 virus spread across Southeast Asia, causing unprecedented epidemics. Thailand was massively infected in 2004 and 2005 and continues today to experience sporadic outbreaks. While research findings suggest that the spread of HPAI H5N1 is influenced primarily by trade patterns, identifying the anthropogenic risk factors involved remains a challenge. In this study, we investigated which anthropogenic factors played a role in the risk of HPAI in Thailand using outbreak data from the "second wave" of the epidemic (3 July 2004 to 5 May 2005) in the country. We first performed a spatial analysis of the relative risk of HPAI H5N1 at the subdistrict level based on a hierarchical Bayesian model. We observed a strong spatial heterogeneity of the relative risk. We then tested a set of potential risk factors in a multivariable linear model. The results confirmed the role of free-grazing ducks and rice-cropping intensity but showed a weak association with fighting cock density. The results also revealed a set of anthropogenic factors significantly linked with the risk of HPAI. High risk was associated strongly with densely populated areas, short distances to a highway junction, and short distances to large cities. These findings highlight a new explanatory pattern for the risk of HPAI and indicate that, in addition to agro-environmental factors, anthropogenic factors play an important role in the spread of H5N1. To limit the spread of future outbreaks, efforts to control the movement of poultry products must be sustained.
Journal Article
Research Support, N.I.H. Extramural
Research Support, Non-U.S. Gov't
info:eu-repo/semantics/published
Databáze: OpenAIRE