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H5N1 highly pathogenic avian influenza in Southeast Asia

D Eagles1, E S Siregar, D H Dung

  • 1Australian Animal Health Laboratory, PMB 24, Geelong, Victoria 3220, Australia.

Revue Scientifique Et Technique (International Office of Epizootics)
|July 22, 2009
PubMed

Insights

Highly pathogenic avian influenza virus (HPAIV) outbreaks persist in Southeast Asia despite control efforts. Poultry and human movement drives ongoing HPAIV transmission, necessitating a comprehensive approach for lasting control.

Area of Science:

  • Veterinary Medicine
  • Epidemiology
  • Infectious Diseases

Background:

  • Highly pathogenic avian influenza virus (HPAIV) outbreaks have been recorded in multiple Southeast Asian countries since 2003.
  • Despite implemented control programs including surveillance, vaccination, and stamping out, HPAIV continues to occur in the region.

Purpose of the Study:

  • To analyze the ongoing HPAIV situation in Southeast Asia.
  • To identify factors contributing to the continued propagation of HPAIV in the region.

Main Methods:

  • Review of HPAIV outbreak data in Southeast Asia since 2003.
  • Analysis of disease control strategies and their effectiveness.
  • Identification of transmission pathways.

Main Results:

  • Multiple HPAIV strains have circulated in Southeast Asia since 2003.
  • The movement of domestic poultry, poultry products, and people is identified as the primary driver of HPAIV propagation.
  • Existing control programs have not fully eradicated the virus.

Conclusions:

  • A comprehensive strategy integrating all available methods is essential to break the chain of HPAIV transmission in poultry.
  • Sustained efforts are required for lasting disease control in the region.

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