Migratory birds play a major role in spreading influenza viruses over long distances. We report highly pathogenic avian influenza A(H5N6) viruses in migratory and resident ducks in Bangladesh. The viruses were genetically similar to viruses detected in wild birds in China and Mongolia, suggesting migration-associated dissemination of these zoonotic pathogens.
Keywords: Bangladesh; H5N6; HPAI; highly pathogenic avian influenza; influenza; live poultry markets; poultry; respiratory infections; viruses; wild birds.