| first reported incursion of highly pathogenic notifiable avian influenza a h5n1 viruses from clade 2.3.2 into european poultry. | this study reports the first incursion into european poultry of h5n1 highly pathogenic notifiable avian influenza a (hpnai) viruses from clade 2.3.2 that affected domestic poultry and wild birds in romania and bulgaria, respectively. previous occurrences in europe of hpnai h5n1 in these avian populations have involved exclusively viruses from clade 2.2. this represents the most westerly spread of clade 2.3.2 viruses, which have shown an apparently expanding range of geographical dispersal since ... | 2010 | 21054819 |