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Background H9 N2 avian influenza viruses continue to spread in poultry and wild birds throughout Eurasia. Objectives To characterize H9 N2 influenza viruses from pheasants, quail, and white-bellied bustards ( WBBs) used to train falcons in the United Arab Emirates ( UAE). Methods Four H9 N2 viruses were isolated from pheasants, quail, and WBB used for falconry in the UAE, and antigenic, molecular, phylogenetic analysis, and invivo characterization of H9 N2 viruses were performed. Results and conclusions The pheasant and WBB isolates were antigenically and molecularly clearly related and along with the quail isolates contained multiple 'avian-human' substitutions. The release of smuggled H9 N2-infected birds for falconry may contribute to the spread of these viruses to wild birds, domestic poultry, and humans. [ABSTRACT FROM AUTHOR]