The rapid spread and mutation of a deadly bird flu virus in the United States warrants urgent global action on pandemic preparedness to close dangerous gaps in the world’s ability to develop and deliver new protective vaccines, flu and disease outbreak specialists are warning.
he United States has reported its first outbreak of H5N9 bird flu on a duck farm in California, according to the World Organization for Animal Health (WOAH) on Monday.
H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird flu. It's a reassortment strain that originated from the H5N1, H7N9, and H9N2 subtypes.
