Originally Posted by
nzkarit
But how does that keep SARS-CoV-2 out of the country?
A negative test can mean:
* False Positive
* Too early in infection to test positive
* Actually have no SARS-CoV-2 in body.
In some ways better not to test and put people in isolation, as if people are option 1 or 2 they will think they are fine and go a spread SARS-CoV-2 everywhere. Which is the opposite of what you want.
Tests are only helpful when test at the right time and fully understand what the results could mean.
If a test identified correctly x% of all cases what would x need to be in your opinion for it to be a valid strategy?