So how will you prove, to Qantas' satisfaction, that you have taken that vaccine? Will it be noted in your passport? Will you have a barcode tattooed on your forearm? A chip at the place of vaccination that can be scanned as you board?

I ask because I just had to go through proving my kids are vaccinated for school and the government records were so poor that they each had to get boosters of vaccines they already had, "just in case". What database will be created that Qantas can search, or what document will be tamper-proof enough that you can carry it and trust it? Have you given any thought to that or are you just so trusting of government that you are willing to turn your ability to travel over to their dubious record keeping?