Characterization of an H4N2 influenza virus from Quails with a multibasic motif in the hemagglutinin
Introduction Avian influenza viruses (AIVs) are classified by the World Organization of Animal Health (OIE) (OIE, 2012) into two pathogenicity groups: low-pathogenic avian influenza (LPAI) viruses cause mild or asymptomatic infections in chickens, and hig...