I think this is also where the size and 'buying power' of the EU actually works against it. The UK has bought something like 5 courses of vaccine for each of it

I think this is also where the size and 'buying power' of the EU actually works against it. The UK has bought something like 5 courses of vaccine for each of its population across numerous suppliers, expecting that a few of them will be damp squibs or arrive/be approved too late or not at all. I don't really know - but I don't think the EU is actually in a position to do the same given the size of the combined poplulation and the limited political appeal of wealthier countries to subsidise others for vaccines that won't be needed.