2011•PubMedRequires access
A vaccine prepared from a non-pathogenic H5N1 influenza virus strain from the influenza virus library conferred protective immunity to chickens against the challenge with antigenically drifted highly pathogenic avian influenza virus.
Rozanah Asmah Abdul Samad, Naoki Nomura, Yoshimi Tsuda, Rashid Manzoor, Masahiro Kajihara, Daisuke Tomabechi, Takashi Sasaki, Norihide Kokumai, Toshiaki Ohgitani, Masatoshi Okamatsu, Ayato Takada, Yoshihiro Sakoda, Hiroshi Kida
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Abstract
Inactivated influenza virus vaccine prepared from a non-pathogenic influenza virus strain A/duck/Hokkaido/Vac-1/2004 (H5N1) from the virus library conferred protective immunity to chickens against the challenge of antigenically drifted highly pathogenic avian influenza virus (HPAIV), A/whooper swan/Hokkaido/1/2008 (H5N1). The efficacy of the vaccine was comparable to that prepared from genetically modified HPAIV strain deltaRRRRK rg-A/ whooper swan/Mongolia/3/2005 (H5N1), which is more antigenically related to the challenge virus strain, in chickens.