Good article here, which discusses a number of issues around the vaccine.
https://unherd.com/2020/11/yes-the-v...ly-on-its-way/
It appears the vaccine has to be stored at minus 80 C apart from the last day or two, so it seems GP surgeries would need to be using up their batches pretty much as soon as they have been delivered.
Still, very positive news. Let's hope there are no hitches in the next month, I don't think we could stand the disappointment.