I need to stop over in Australia, to go to and come back from New Zealand.
Given that I don't need any visa for the stopovers, I wonder if I should get some specific vaccination, or bring any certificate of it. I did all the compulsory vaccinations here in Europe, but the little book certifying it is in my home country.
How does it work in Australia? Will I be asked for these certificates? And when? (When boarding? At check-in time? When landing over?)
Is it common to be checked about it?