Highly pathogenic Avian Influenza A(H5N8) viruses reintroduced into South Korea by migratory waterfowl, 2014–2015
Highly pathogenic avian influenza A(H5N8) viruses were isolated from migratory waterfowl in South Korea during fall 2014–winter 2015, a recurrence after initial introduction in winter 2014. These reappeared viruses were phylogenetically distinct from isolates circulating in poultry farms in South Korea.