I think that people's resistance to vaccination isn't going to disappear until we address some of the nonmedical reasons for that resistance and people's discomfort and distrust of the government. That's bigger than what most medical professionals can handle.

On the pro-vaccine side - and not everyone does this, but I saw it enough for it to make me really uncomfortable - is a tendency to accuse people who are wary of vaccination of being stupid and not understanding science.

Herd immunity is, it turns out, not incredibly easy to understand. It took me quite a bit of reading before I fully grasped it. But understanding herd immunity is essential to understanding why we vaccinate the way we do.

Nigeria and Pakistan are two countries that have had a lot of trouble with polio. And part of the reason is that there's a lot of political unrest, and people really distrust what the government is doing. That has an effect on people's health, and it has an effect on the health of children.

If you cannot get rid of the family skeleton, you may as well make it dance.

My aunt Geraldine was the unofficial historian and storyteller. She had all the information about family members and the gossip that came out of the church because we were very much part of the African Methodist Episcopal Zion Church. At family gatherings, the older folk had the floor, had pride of place, and it was their stories I remember.

I can't work without my family being with me.

Early in my career, I didn't want to disappoint my colleagues, clients, or family. So I said yes to everything. This ended up raising my stress level and shortchanging everyone else - including myself - because I couldn't give anyone 100 percent of my time, nor could I pay close attention.