Earlier quoted context omitted.
This might just be the straw that broke the camels back. As far as I remember the contracts the EU signed turned out to be incredibly one sided, with deliveries getting cut down when someone found out that more dosages could be extracted, no hard delivery requirements leading to constant shortages, etc. . Not getting out of that mess when alternatives exist seems like a bad idea.
This is very likely a political decision. AZ has not honoured their "best effort" contract obligations, the company priortized UK deliveries to honour their other contract and Western Europeans are reluctant to take it because it's less well tolerated than mRNA vaccines and now the very rare blood clot issues. It's too bad, because vaccination rollouts are well behind schedule with less than 10% or so of the EU popul…
Around 16% if you count first dose vaccinations (which evidently you do). Doesn't change your major point, though.
https://ourworldindata.org/explorers/coronavirus-data-explor...