It is not simply a question of scaling up untapped capacity; producing these vaccines is complicated and technically challenging, and we need the support of big pharma to do it. There are few facilities across the world that can produce them properly and we have seen, even in the West, how some batches have gone wrong because of manufacturing problems. However, we are proud to be working with the COVAX initiative. We have helped to raise more than £1 billion through match funding other donors. Combined with our aid, that is helping to distribute 1.8 billion doses across the world.