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 worst potential bio-terrorist is nature itself.

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

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.

Today we know the best way to prevent the spread of Ebola infection is through public health measures.

We feel confident that there won't be an outbreak. The people who were around the patient are now being identified and traced by the CDC and by the state health authorities. ... you get people, you identify them, and you observe and monitor them daily to determine if they develop symptoms If they do, then you put them under isolation to determine if, in fact, they are infected. And if you do that properly, you can shut down any outbreak.

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