Although it is still important to develop an HIV vaccine, we have significant tools already at our disposal that can make a major impact on the trajectory of this epidemic.

There has been treatment for hepatitis C, but the treatment has not been overwhelmingly effective, number 1. And number 2, it has had considerable toxicity.

The immune systems goal is to protect the body against invaders either from without, such as microbes, or from within, such as cancers and different types of neoplastic transformation.

When you put someone on therapy, you lower the level of virus such that it makes it very difficult for them to infect others.

You help someone's health, and you prevent them from infecting others.

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

A pandemic influenza would mean widespread infection essentially throughout every region of the world.