Transcription of Avian Influenza Importance - Home: OIE
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Avian Influenza Importance - Home: OIE
Avian Influenza Fowl Plague, Grippe Aviaire Last Updated: September 2014 An enhanced version of this factsheet, with citations is available at Importance Avian Influenza viruses are highly contagious, extremely variable viruses that are widespread in birds. Wild birds in aquatic habitats are thought to be their natural reservoir hosts, but domesticated poultry are readily infected. Most viruses cause only mild disease in poultry, and are called low pathogenic Avian Influenza (LPAI) viruses. Highly pathogenic Avian Influenza (HPAI) viruses can develop from certain LPAI viruses, usually while they are circulating in poultry flocks. HPAI viruses can kill up to 90-100% of the flock, and cause epidemics that may spread rapidly, devastate the poultry industry and result in severe trade restrictions.
Avian Influenza . HPAI viruses are eradicated from all domesticated birds, whenever possible, and developed countries are usually HPAI-free. Asian lineage H5N1 HPAI viruses are
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