[quote littleloopylou]@MagentaZebras
You're right, I was using population density to explain why the death rates arent worse in the US given all the covid deniers and mask refusers. It's a more complicated picture than this.
Here is an article on it. Densely populated countries that put a lid on it fast, with strong restrictions, have had better outcomes than those which haven't:
www.google.com/amp/s/m.huffpost.com/us/entry/us_5ff8c68fc5b63642b6fba9eb/amp[/quote]
The issue is that there are many factors at play and it's extremely difficult to separate correlation from causation.
Population density doesn't seem to have much correlation even, when you drill down below country level (as many countries had different restrictions in different regions/ states). By far the most important factor as you allude to was how quickly quarantine was instigated at borders (proper quarantine, not "self-isolating"). There is no need to close borders entirely, proper quarantine for all travellers serves the purpose.
If our Government had elected to state fund hotel quarantine last Jan/ Feb when many of us were arguing for it, as data emerged from China, that would have cost orders of magnitude less than they've had to spend on Covid to date. There would have been no need for widespread lockdowns here, or for absolute bans on going abroad.