1 The Peter Doherty Institute for Infection and Immunity, The University of Melbourne and The Royal Melbourne Hospital, VIC 3000, Australia; The Nossal Institute for Global Health, The University of Melbourne, VIC, Australia. Electronic address: jp.villanueva@unimelb.edu.au.
2 Melbourne School of Population and Global Health, The University of Melbourne, VIC, Australia.
3 The Peter Doherty Institute for Infection and Immunity, The University of Melbourne and The Royal Melbourne Hospital, VIC 3000, Australia; Melbourne School of Population and Global Health, The University of Melbourne, VIC, Australia.
4 Melbourne Veterinary School, The University of Melbourne, VIC, Australia.