1. 1) Animal Health Australia : Animal health in Australia system report, first edition. Animal Health Australia, 2021. Available at: https://www.animalhealthaustralia.com.au/our-publications/animal-health-in-australia-report/ (Accessed July 7, 2021)
2. 2) Bevins, S. N. et al. : Large-scale avian influenza surveillance in wild birds throughout the United States. PLoS One, 9, e104360, 2014.
3. 3) Bundesministerium für Ernährung und Landwirtschaft (BMEL) : Bekämpfung der geflügelpest in deutschland. Available at: https://www.bmel.de/DE/themen/tiere/tiergesundheit/tierseuchen/gefluegelpest2016.html (Accessed April 5, 2021)
4. 4) Causey, D. and Edwards, S. V. : Ecology of avian influenza virus in birds. J. Infect. Dis., 197, S29-S33, 2008.
5. 5) Chen, H. et al. : Avian flu H5N1 virus outbreak in migratory waterfowl. Nature, 436, 191-192, 2005.