Gladly.
The EU exported 25 million doses of coronavirus vaccines in February to 31 countries around the world, with Britain and Canada the top destinations, just as the bloc saw its own supply cut drastically by pharmaceutical companies. Ban or no ban, Britain is not exporting vaccines authorised for use at home, and has administered nearly 21million doses, the vast majority of which has been produced in the EU.
They have based on the UK Foreign Office's comment, which isn't a great source. The EU maintains that - while it is technically correct that there has been no specific export stop, the UK has used other legal mechanisms - including procurement laws and dubious contract clauses - that have resulted in the same outcome.
Is the UK exporting any vaccine? No. Is the EU exporting a lot of vaccine? Yes. Are EU factories being used to supply the UK before the EU against the contract that AZ signed with the EU? Yes.
I'm not saying the EU is completely in the right either and definitely has fucked it badly in some regard, but the claim over vaccine nationalism from the UK is frankly ridiculous. Plus it has literally nothing to do with Brexit...the vaccine procurement scheme by the EU is voluntary.
(Also this is a nude forum and I'd rather not discuss with any brexiteers)