... manufacturing, quality, identity of vaccine strain, improper handling and/ or administration can be decisive for efficiency of any AIV vaccine [2,29]. Therefore, presence of new alternative and complementary ... and safety to vaccination against avian influenza using inactivated H5N2 vaccine in zoo birds. J. Zoo Wildl. Med. 2009, 40, 731–743. 39. Kapczynski, D.R.; Swayne, D.E. Influenza vaccines for ... response to vaccination against avian influenza in zoo-birds using an inactivated H5N9 vaccine. Vaccine 2007, 25, 4345–4349. 43. Robinson, J.H.; Easterday, B.C. Avian influenza virus infection of...