I don't understand why everyone seems to be surprised by this, this is what we've always been expecting. There will be an exit wave, but it will very probably be smaller, and definitely much less deadly. That's the accepted plan. https://twitter.com/BBCPolitics/status/1381919420101066752

And we won't hit the magic 75-85% needed for actual collective immunity for a long time yet. Aside from anything else, like 20% of the population is below 18. So collective immunity is going to be borderline really until we've got until the end of all adults.

V good thread on the challenges of cohort immunity here, btw, which we are playing right into. For good, sensible, life-saving reasons, but our approach is unideal from a pure transmission cutting approach. https://twitter.com/Dr_D_Robertson/status/1381639788017680393

Anyway, all that doesn't massively matter in the round, because the main thing vaccinations do at this point is drastically cut down deaths and hospitalisations, and that's very good, and means any exit wave will be much, much less deadly than any previous wave.