To establish a rapid detection method against HA protein of Clade7.2, Clade 2.3.2 and Clade2.3.4.4 H5 subtype avian influenza virus(AIV), which are mainly prevalent in China, the Clade7.2 branch vaccine strain CK/LN/S4092/2011(H5 N1)(Re-7), Clade2.3.4.4 branch vaccine strain DK/GZ/4/2013(H5 N1)(Re-8) and Clade2.3.2.1 e branch vaccine strain DK/AH/S1246/14(H5 N1)(Re-10) were used as an immunogen to immunize four-week old BALB/c female mice. After four immunizations, the splenic cells of mice were fused with ...