[1] Univ Melbourne, Fac Vet & Agr Sci, Parkville, Vic, Australia
[2] Barwon Hlth, Australian Rickettsial Reference Lab, Geelong, Vic, Australia
[3] Univ Adelaide, Sch Anim & Vet Sci, Roseworthy, Australia
[4] Univ Queensland, Sch Vet Sci, Gatton, Australia
[5] Murdoch Univ, Sch Vet & Life Sci, Perth, WA, Australia