Evaluation of a positive marker of avian influenza vaccination in ducks for use in H5N1 surveillance
Keywords: نورآمینیداز; AI; avian influenza; DIVA; differentiating infected from vaccinated animals; FAO; Food and Agricultural Organisation; HA/H; haemagglutinin; HI; haemagglutination inhibition; HPAI; highly pathogenic avian influenza; LPAI; lowly pathogenic avian influenza;