That's interesting wiggin and the Catch 22 seems a real issue.
Over here my wife was booked in for her second jab a week or two ago for the end of February, so are planning weeks and months ahead even in some hospitals.
I understand the logistics are an issue but from what I've heard the logistics of the AstraZenica vaccine are much simpler, not requiring the supercold storage for instance, so hopefully they can cope with multiple dosing types going on at the same time. Can cope in normal circumstances with multiple diseases at the same time, though I understand this isn't normal circumstances nor normal volumes.