1. Vahlenkamp, T. W. & Harder, T. C. Influenza virus infections in mammals. Berliner und Munchener tierarztliche Wochenschrift 119, 123–131 (2006).
2. Fields, B. N., Knipe, D. M. D. M.- & Howley, P. M. Fields virology. 6th ed. edn, Vol. 1 (Wolters Kluwer, Lippincott Williams & Wilkins, 2013).
3. Urbaniak, K. & Markowska-Daniel, I. In vivo reassortment of influenza viruses. Acta Biochim Pol 61, 427–431 (2014).
4. A revision of the system of nomenclature for influenza viruses: a WHO memorandum. Bulletin of the World Health Organization 58, 585–591 (1980).
5. Fouchier, R. A. et al. Characterization of a novel influenza A virus hemagglutinin subtype (H16) obtained from black-headed gulls. Journal of virology 79, 2814–2822, 10.1128/JVI.79.5.2814-2822.2005 (2005).