The body's immune system is like any other system of the body. Each of them have their vital function for the human host.
You don't have to vaccinate every man, woman and child in the country if you have a couple of cases of smallpox cropping up.
We can sharply deflect the curve of HIV incidence.
Activism has been very productive in our society.
For the first time, we have the genetic sequences of all three of the players in the global malaria debacle: the parasite, the anopheles mosquito and the human. It's a very important milestone.
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.
I'm generally considered a conservative in my predictions for disease.