Flying Over an Infected Landscape: Distribution of Highly Pathogenic Avian Influenza H5N1 Risk in South Asia and Satellite Tracking of Wild Waterfowl

Autor: Leo Loth, Chandrashekhar Biradar, John Y. Takekawa, Tseveenmayadag Natsagdorj, Mandava Venkata Subba Rao, Sivananinthaperumal Balachandran, Yuansheng Hou, Xiangming Xiao, Baoping Yan, Taej Mundkur, Zhi Xing, Marius Gilbert, Nyambayar Batbayar, Lenny Hogerwerf, Scott H. Newman, Diann J. Prosser, Jan Slingenbergh
Rok vydání: 2010
Předmět:
Ruddy shelduck
viruses
animal diseases
Health
Toxicology and Mutagenesis
Disease Vectors
migration
medicine.disease_cause
Disease Outbreaks
0403 veterinary science
Flyway
Waterfowl
Influenza A virus
Spacecraft
Spacecraft -- instrumentation
Asia
Southeastern
Influenza A Virus
H5N1 Subtype -- isolation & purification
Bangladesh
0303 health sciences
education.field_of_study
Ecology
biology
virus diseases
Original Contribution
04 agricultural and veterinary sciences
Sciences bio-médicales et agricoles
3. Good health
Geography
Influenza
Human -- epidemiology -- transmission
epidemiology
Influenza in Birds -- epidemiology -- transmission
Environmental Health
Algorithms
Remote Sensing Technology -- instrumentation -- methods
China
Bangladesh -- epidemiology
040301 veterinary sciences
India -- epidemiology
Population
India
Birds
03 medical and health sciences
Influenza
Human
disease ecology
medicine
Animals
Humans
education
030304 developmental biology
Influenza A Virus
H5N1 Subtype
China -- epidemiology
Environmental Health -- methods -- statistics & numerical data
biology.organism_classification
Influenza A virus subtype H5N1
Logistic Models
Asia
Southeastern -- epidemiology
Animal ecology
Influenza in Birds
Remote Sensing Technology
Public Health Practice
Biological dispersal
Animal Migration
avian influenza
Zdroj: EcoHealth, 7 (4
Ecohealth
ISSN: 1612-9210
1612-9202
DOI: 10.1007/s10393-010-0672-8
Popis: Highly pathogenic avian influenza (HPAI) H5N1 virus persists in Asia, posing a threat to poultry, wild birds, and humans. Previous work in Southeast Asia demonstrated that HPAI H5N1 risk is related to domestic ducks and people. Other studies discussed the role of migratory birds in the long distance spread of HPAI H5N1. However, the interplay between local persistence and long-distance dispersal has never been studied. We expand previous geospatial risk analysis to include South and Southeast Asia, and integrate the analysis with migration data of satellite-tracked wild waterfowl along the Central Asia flyway. We find that the population of domestic duck is the main factor delineating areas at risk of HPAI H5N1 spread in domestic poultry in South Asia, and that other risk factors, such as human population and chicken density, are associated with HPAI H5N1 risk within those areas. We also find that satellite tracked birds (Ruddy Shelduck and two Bar-headed Geese) reveal a direct spatio-temporal link between the HPAI H5N1 hot-spots identified in India and Bangladesh through our risk model, and the wild bird outbreaks in May-June-July 2009 in China (Qinghai Lake), Mongolia, and Russia. This suggests that the continental-scale dynamics of HPAI H5N1 are structured as a number of persistence areas delineated by domestic ducks, connected by rare transmission through migratory waterfowl.
Journal Article
Research Support, N.I.H. Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
SCOPUS: ar.j
info:eu-repo/semantics/published
Databáze: OpenAIRE
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