1 Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia. Electronic address: laura.hardefeldt@unimelb.edu.au.
2 Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia.
3 National Centre for Antimicrobial Stewardship, Peter Doherty Institute, Grattan St., Parkville, Victoria, Australia.