Sanitation issues in the developing world affect women more than they affect men.

What great changes have not been ambitious?

All of a sudden people in the United States start to realize that vaccines make a difference. The controversy and the myth that's there, we're always trying to bust through that. So when I see a disease outbreak, I say to myself, "OK, that'll get people realizing how lucky we are to have vaccines."

It's really one of my all-time favorite things to do. To go out and really see the kids and visit the moms who are in these programs because I think I really get to see what happens on the ground and connect with them about what changes are that happen in their lives because of some of the giving that we're able to do.

Sanitation issues in the developing world affect women more than they affect men.

Housework comes first, so girls often fall behind in school. Global statistics show that it's increasingly girls, not boys, who don't know how to read.

You can have the best vaccines for a woman or her child, but if you can't get her to come and get them then they won't work.