Pathogenicity and Vaccine Efficacy of Different Clades of Asian H5N1 Avian Influenza A Viruses in Domestic Ducks

Jeong-Ki Kim, Patrick Seiler, Heather L. Forrest, Alexey M. Khalenkov, John Franks, Mahesh Kumar, William B. Karesh, Martin Gilbert, R. Sodnomdarjaa, Bounlom Douangngeun, Elena A. Govorkova and Robert G. Webster

Journal of Virology 82 ( 22 ): 11374 - 11382 , 2008