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.

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

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

I enjoy very much communication. I think that scientists need to communicate.

The worst potential bio-terrorist is nature itself.

When I was a child, there were not that many vaccines. I was vaccinated for polio. I actually got measles as a child. I got pertussis, whooping cough. I remember that very well.

Previous efforts to eradicate malaria failed for several reasons, including political instability and technical challenges in delivering resources, especially in certain countries in Africa.