Do you also take testing per capita into account? The US seems to be far behind on that. Or the US has found a super effective approach that no other nation has

Do you also take testing per capita into account? The US seems to be far behind on that. Or the US has found a super effective approach that no other nation has found to this kind of test/positives ratio. Also these countries don't seem to be at the same point in time as the US, we know the US is a week or two behind some of them. Comparing them like is not really fair.