1. FAO Animal Production and Health Division. in Fifth report of the global programme for the prevention and control of highly pathogenic avian influenza (January 2011–January 2012) 33–74 (Food and Agriculture Organization of the United Nations, Rome, 2013).
2. FAO. Approaches to controlling, preventing and eliminating H5N1 Highly Pathogenic Avian Influenza in endemic countries. Animal Production and Health Paper 171, http://www.fao.org/docrep/014/i2150e/i2150e.pdf (2011).
3. Tam, J. S. Influenza A (H5N1) in Hong Kong: an overview. Vaccine 20, S77–S81, https://doi.org/10.1016/S0264-410X(02)00137-8 (2002).
4. Xu, X. Y., Subbarao, K., Cox, N. J. & Guo, Y. J. Genetic characterization of the pathogenic influenza A/Goose/Guangdong/1/96 (H5N1) virus: Similarity of its hemagglutinin gene to those of H5N1 viruses from the 1997 outbreaks in Hong Kong. Virology 261, 15–19, https://doi.org/10.1006/viro.1999.9820 (1999).
5. Centres for Disease Control and Prevention. Biosafety recommendations for work with influenza viruses containing a hemagglutinin from the A/goose/Guangdong/1/96 lineage. Morb. Mortal. Weekly Rep. 62, 1–7 (2013).