I would like to dig a bit deeper into the supply question. I had the privilege of visiting a GP surgery in my constituency on Friday, where I was told by the doctor in charge that they cannot book the next set of appointments because they do not know when they will get the next delivery of the vaccine. I have heard from other centres that they are not allowed to move on to the next cohort when they finish the under-80s, in order to ensure that there is equity across the country. The Minister has said that we cannot have 24/7 vaccinations because of supply. Is the supply issue the rate at which the product is being manufactured, the rate at which it is being packaged, the rate at which it is being batch tested, or the rate at which it is being distributed around the country?