Outbreaks of highly pathogenic avian influenza (HPAI) viruses in domestic poultry have been increasing since the late 1990s and have affected poultry in Europe as elsewhere.
Augsti patogēnu putnu gripas (HPAI) vīrusu uzliesmojumu skaits mājputnu vidū ir pieaudzis kopš 1990. gadu beigām, un tie ir ietekmējuši putnkopību Eiropā un citur.