@prefix agrovoc: <http://aims.fao.org/aos/agrovoc/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns0: <http://art.uniroma2.it/ontologies/vocbench#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

agrovoc:xDef_7836dd3a
  rdf:value "Avian influenza is a highly contagious viral disease that affects both domestic and wild birds. Avian influenza viruses have also been isolated, although less frequently, from mammalian species, including humans. This complex disease is caused by viruses divided into multiple subtypes (i.e. H5N1, H5N3, H5N8 etc.) whose genetic characteristics rapidly evolve. The disease occurs worldwide but different subtypes are more prevalent in certain regions than others. The many strains of avian influenza viruses can generally be classified into two categories according to the severity of the disease in poultry:  low pathogenicity avian influenza (LPAI) that typically causes little or no clinical signs; high pathogenicity avian influenza (HPAI) that can cause severe clinical signs and possible high mortality rates. While high pathogenicity avian influenza (HPAI) primarily affects domestic and wild birds, multiple cases have confirmed its occurrence in cattle (Bos taurus). This highly contagious viral disease has also been identified in other wild and domestic mammalian species. "@en ;
  ns0:hasSource "WOAH. 2026. What is avian influenza? https://www.woah.org/en/disease/avian-influenza/  and  WOAH. 2026. High Pathogenicity Avian Influenza (HPAI) in cattle https://www.woah.org/en/disease/high-pathogenicity-avian-influenza-hpai-in-cattle/" ;
  dc:created "2024-07-29T09:54:18"^^xsd:dateTime ;
  dc:modified "2026-05-08T09:18:03"^^xsd:dateTime .

agrovoc:c_331337 skos:definition agrovoc:xDef_7836dd3a .