Tempers frayThat would imperil Britain's vaccination drive, which has so far proved more successful than those of EU member states, which have been hit by a massive shortfall in deliveries.As tempers frayed this week, a joint statement by the British government and the commission on Wednesday said both sides were looking for ways to cooperate towards a "win-win" compromise, but no details were given.While Britain accuses the European Union of vaccine "nationalism", von der Leyen noted that the bloc was "the region that exports the most vaccines worldwide".She said that, since the beginning of December, companies in the EU had sent 77 million doses of Covid vaccines out of the bloc -- with an EU official noting that more than a quarter of.