The world is a place that is so interconnected that what happens in another part of the world will impact us.

You can have an epidemic in a state. You can have it in a region. You can have it in a country where the critical level of disease passes a certain threshold and we call that an epidemic threshold.

We can sharply deflect the curve of HIV incidence.

An AIDS-free generation would mean that virtually no child is born with HIV; that, as those children grow up, their risk of becoming infected is far lower than it is today; and that those who become infected can access treatment to help prevent them from developing AIDS and from passing the virus on to others.

I believe I have a personal responsibility to make a positive impact on society.

One of the by-products of being a perfectionist and constantly trying to improve myself are sobering feelings of low-grade anxiety and a nagging sense of inadequacy This anxiety keeps me humble.

Activism has been very productive in our society.