Originally Posted by
hdogan
You're overthinking this :-) You will self-declare whether you've been in high risk countries within the past 6 days. Since you clearly will be out of Argentina for more than 6 days, there's nothing to worry about.
I agree, but if OP is entering Singapore with an Argentina passport, he may have to prove that he was out of the country for the required period. And the US are stamping passports less and less. If entering with a US passport, no problem.