It's easier to learn things for life by the age of 12 and not the age of 18. This is just my guess.

Basic research is very useful, but it should be more geared toward application than it was before.

We don't know why, but there are some gradients of infection.

I've participated in meetings where there were concerns by ethical experts. There is no clear solution.

AIDS win be our first priority, but in two years' time we don't know where AIDS research will stand, so we are also thinking of activity on other diseases.

My proposal now is to test a vaccine first on people who have been infected, and if you show some efficacy at this level, you might be able to go further to study uninfected people in a population with a high rate of infection.

That is why it is so important not only to have excellent treatment but also to try to get back the immune defense, because there you have a natural defense that takes place everywhere.