I would imagine you could create a shared medicine treaty group and structure it with explicit membership qualifications and then a voting on membership and long enough delay to make the membership politically tenable.

It would be a very tough job to align the health and testing requirements for even the US and European countries

How would that be politically untenable? There are tons of similar situations.

Similar rules are applied to passports and driving licenses too, some countries are trusted more than others.

Fortunately, realpolitik can still prevail over wokeism in international affairs in which there are obvious life and death consequences.

What does this have to do with wokeism?

Treating different countries differently, even for completely objective and common sensical reasons violates the woke desire for equality of outcome.