Quickly, as my colleague just mentioned, the different vaccines have different supply chains. We have all learned how to distribute them at the local level.
I think your idea of being able to train folks to deliver them is actually a very good one. As we all become even much more sophisticated in the business model, we will explore that as an ecosystem.
You can also see that 2.6 billion doses from AstraZeneca have been distributed in lower- to mid-tier countries. It does show the difference between the supply chain and being able to get different types of medicines into local areas to actually administer them.