[nnx]

> vaccine passports are likely to be if anything counterproductive

Clearly, or at least there are absolutely zero studies to show they are helping in any way. And yet more and more countries are trying to impose them in lockstep fashion.

[tgv]

That's not the question; at best it's a naive frame. The question is: is there evidence that shows they're counterproductive?

> in lockstep fashion

A not so naive frame.

[WalterGR]

> Clearly, or at least there are absolutely zero studies to show they are helping in any way.

How long have COVID-19 vaccine passports existed?