I suppose it was always inevitable. There was always going to be a vaccine shortage, and it was always going to be uneven between countries. The UK has given a first dose to 13% of the population. Germany 3%, France 2%. There's a shortage of vaccines.
There also seems to be a shortage of capacity to give the jab, which is really surprising, because we've known for a year that we were going to need that.
Countries can't be mean to each other about capacity to give the jab, but they can be mean about vaccine quantity. And that's what is brewing.
Although the EU has flinched over the restriction of imports to NI, they're still up for restricting it to everywhere else outside the EU.
This is not going to be pretty.