this is bbc news. vaccines minister nadhim zahawi is about to give a downing street briefing so we will bring you that as soon as he arrives. in the meantime, let's talk to our health correspondent catherine burns about what he is likely to say. i think the message i expect from this will be to get to yourjabs, your second dose in particular because it is so important against the delta variant. there will be interesting stuff about cases... variant. there will be interesting stuff about cases. . ._ stuff about cases... welcome to downin: stuff about cases... welcome to downing street _ stuff about cases... welcome to downing street for _ stuff about cases... welcome to downing street for today's - downing street for today's coronavirus briefing. i am joined to my left by the director for primary