Yes, we do. In the most affected countries in Africa, we see a decline of HIV prevalence. It's not as dramatic as with malaria, of course. You can't achieve that in a short period of time. As I said, with malaria, it's 50%, but in HIV, you now achieve reductions of 5% or 10%, which is great, because we are seeing a reversing of the trend of increasing infections.
It is the same thing with tuberculosis. We see a decrease in the infection rates in most countries, but there are two challenges that remain with tuberculosis that I need to mention. One is the multi-drug-resistant tuberculosis. We have problems in a number of countries with the resistant tuberculosis. It is extremely expensive to treat, but it's also extremely dangerous. That applies not only to countries in Africa or Asia, but also to countries such as Canada, or in Europe. Drug-resistant tuberculosis is one of the big global public health threats.
The other is the coinfection of HIV and TB. In countries where most of the people have a coinfection, it's more difficult to control both infections. In tuberculosis in general, yes, there is progress, but these are two really challenging areas where we need to redouble our efforts.