Influenza viruses with the highest nucleotide identity to each gene of A/duck/Eastern China/1111/2011, A/chicken/Hebei/1102/2010 and A/duck/Hebei/0908/2009*.

*Abbreviations: PB, polybasic protein; PA, polymerase acidic protein; HA, haemagglutinin; NP, nucleocapsid protein; NA, neuraminidase; M, matrix protein; NS, nonstructural protein; DK/EC/909/09, A/duck/Eastern China/909/2009; DK/EC/108/08, A/duck/Eastern China/108/2008; DK/EC/142/06, A/duck/Eastern China/142/2006; DK/NC/1904/92, A/duck/Nanchang/1904/1992; CK/SH/Y1/08, A/chicken/Shanghai/Y1/2008; CK/China/AH-10-01/10, A/chicken/China/AH-10-01/2010; CK/SD/1231/08, A/chicken/Shandong/1231/2008; CK/VN/NCVD-swab15/08, A/chicken/Vietnam/NCVD-swab15/2008; CK/SD/12/08, A/chicken/Shandong/12/2008; CK/SD/ZB/07, A/chicken/Shandong/ZB/2007; DK/MG/867/02, A/duck/Mongolia/867/2002; JP/8KI0135/08, A/avian/Japan/8KI0135/2008; DK/Korea/A93/08, A/duck/Korea/A93/2008; CK/HD/4/08, A/chicken/Huadong/4/2008; AB/Korea/w164/07, A/aquatic bird/Korea/w164/2007; DK/EC/142/06, A/duck/Eastern China/142/2006; DK/YZ/013/08, A/duck/Yangzhou/013/2008; Korea/SH11-10/09, A/environment/Korea/SH11-10/2009. Data for A/goose/Eastern China/1112/2011 were idential to those for A/duck/Eastern China/1111/2011 and were not shown in this table.