No, you'd need something like a nasty pandemic where people willingly give bodily fluid samples. Like that'll ever happen...
Just kidding.
That would require a conspiracy on a scale never seen before that is just not possible considering how poorly coordinated governments are and would be stupid to do because if it were to be found out by the public would end in mass revolt.
Just kidding.
That would require a conspiracy on a scale never seen before that is just not possible considering how poorly coordinated governments are and would be stupid to do because if it were to be found out by the public would end in mass revolt.