@Lalalablahblahblah
Does anyone have an idea as to whether the under 30s now needing to receive Pfizer or Moderna will mean that the 30-49s will have to wait longer now? I guess if the Moderna delivery is going to be reserved it will, won't it?
I don't think so. They've not said anything about changing the priority order. I think the Moderna vaccines that arrived this week are quite a small shipment with most of them coming later, so it's possible they're expecting most of the new doses over the next few weeks to be AZ, with Pfizer resuming first doses once they've finished the large volume of second doses due in April, alongside most of the Moderna shipments arriving in time for the younger age groups.
There's about 10m people aged 18-30, but about 20% have already had a vaccine one way or another, so that's 8m, and take-up is likely to be lowest in this age group, so I'm inclined to believe the government when they say they're confident they'll be enough non-AZ vaccines left to do them. I think they'd face quite a protest from 40 something frontline workers if they made them wait behind 19 year olds who are at very low risk from anything.