When you're dealing with a very sick person and you're doing something to them, an intervention, be it a procedure or a medication, safety is critical.

You can have an epidemic in a state. You can have it in a region. You can have it in a country where the critical level of disease passes a certain threshold, and we call that an 'epidemic threshold.'

It is now widely recognized that any attempt at malaria eradication must be a long-term commitment that involves multiple interventions, disciplines, strategies and organizations.

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

When I got my PhD, it was a time when there were just no jobs for PhDs. Period. PhDs were getting the lowest paid technician jobs, if they were lucky, in any kind of science.

We all need to figure out what's right for us because nothing about life is one size fits all. Even for an Olympian, that's for sure. And such discovery starts with you paying attention - to yourself.

A big part of engaging kids in science is not getting the single, correct answer; it's being willing to work with students to discover the correct answer.

The scientific content of Genesis 1-11 holds special significance for me because it revolutionized my thinking and, thus, changed my life's direction. Until I reached my late teens, my singular passion was science, astronomy in particular. My life's purpose was to learn more about the universe; nothing beyond that really interested me.