Australia is an island. Its the same for japan and nz. Islands can just defend against spread of foreign illnesses easier if they completely shut everything down and dont let anyone in.
It's very different for countries with land borders. Even if the humans don't spread it, the animals might
Australia is an island. Its the same for japan and nz. Islands can just defend against spread of foreign illnesses easier if they completely shut everything down and dont let anyone in.
It's very different for countries with land borders. Even if the humans don't spread it, the animals might