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I'm not sure that's completely true. Some certainly had strict limits on the numbers that could enter (Australia, New Zealand, etc.) as everyone had to go throu

I'm not sure that's completely true. Some certainly had strict limits on the numbers that could enter (Australia, New Zealand, etc.) as everyone had to go through he government run quarantine systems.

jhugo 4y ago
Australia made it borderline impossible and also restricted citizens from leaving (I think they were the only country to do so?)