Malaria is still a difficult problem. I remember back in the fifties and sixties that the eradication of the mosquito was very important. In many countries, removing standing water and all of those kinds of preventative measures were very successful, but then so was the drug DDT, which is gone now. What do we have in order to actually kill the mosquito that carries malaria?
The final question, which you can perhaps answer at the same time, is about HIV. As you said, for AIDS we have the treatment and are bringing down deaths from AIDS, but for the actual HIV infections, I find it astounding that it is twice as high amongst 15- to 24-year-old girls. You gave the reasons, but what are we going to be able to do to change some of those things? I know that a lot of these girls don't even have access to contraception. If it's early marriage, what do they do when it's their husbands who actually bring the virus into them? What do they do? How can you change that? Those are cultural practices. Those are economic practices. This is a very difficult thing to try to prevent.