Thank you.
I think the one thing that Rowena talked about in terms of vaccines is the massive logistical challenge we face in many of these countries, and I think we'd be remiss if we didn't point to the massive public awareness effort that needs to go in parallel to that. We know from our work that there are misconceptions about vaccines, that there are worries about vaccines and that often the information trickles down very slowly to the communities we work in. If we isolate the conversation about vaccines to a logistical challenge in developing countries, probably we're only covering one side of the story.
Equally, then, I think we know that when it comes to children, we will only be able to provide the kind of protection services and the kind of health services if their parents are able to go back to work once they're vaccinated. I think it's really important to look at this sort of holistically, as we have said, to not isolate vaccines as a silver bullet, and to look at the way that we will be able to actually get people to be willing to become vaccinated once those vaccines are available.