Investigating rare diseases gives researchers more clues about how the healthy immune system functions.

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.

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.

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.

We feel confident that there won't be an outbreak.

I think, collectively, we should be paying more attention to what is going on around us in the world among people who dont have the advantages that we have.

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

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

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.

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.

Do not neglect to show hospitality to strangers, for by doing that some have entertained angels without knowing it.

A loss of any kind is horrible. Not because it takes away, but because it makes you believe- in newspapers, in tomatoes, in empty whiskey bottles.

You do not respond to an attempt on your life with a slap on the hand. Or a joke.

Scotsmen, she had occasion to observe, often did have nice knees. Perhaps that was why they insisted upon kilts.

Old reference books are like tree rings. Without them, there'd be no way to know what a tree had lived through.

There is no river at all, and no boat, and no boatman. There is not even a rope to tow the boat, and no one to pull it. There is no earth, no sky, no time, no thing, no shore, no ford!

From talk radio to insult radio wasn't really that much of a leap.

I dont want a broken heart because Ill lose the pieces.

I believe in Ronald Reagan's 11th commandment, thou shall not speak unfavorably of another Republican.

I regard these people who are peddling angst and peddling pessimism and all that stuff as so 'two minutes ago'.