There's a new strain of the delta variant flourishing in the UK — should we be worried?
By Matthew Bashton, Northumbria University, Newcastle and Darren Smith, Northumbria University, NewcastleNo sooner than you thought all the talk of new COVID variants was over, there's news of yet another one: AY.4.2. But what is it, where did it come from, and should we be concerned?AY.4.2 is what'...