Tom Frieden

New, unfamiliar, and mysterious threats to our health are scary. At the Centers for Disease Control and Prevention - where we identify, on average, one new health threat each year - we work around the clock with an approach that prioritizes finding out what we need to know as fast as we can to protect Americans.

Zika is spread by mosquitos. They are tough to control. It will bite four or five people at one blood meal. They can breed in the amount of water it takes to fill up a bottle cap or, theoretically, even a drop of water. You have to get rid of maybe 90% of them or more before you protect people.

I am a toxico-nutritional neuro-epidemiologist. It's the study of neurological disorders caused by a mixture of toxins and malnutrition using epidemiological methods... We are just three or four in the world, even fewer than sword swallowers.

I'm all in favor of looking deeply into as much as we possibly can. I'm not afraid of knowledge... With all new technology, weapons inevitably emerge... Evil comes out of the human heart. It doesn't come out of nature.

The importance of heart health became very real for me when my father died of heart disease seven years ago. Having experienced the loss first hand, I am inspired to do everything I can to break the cycle and prevent families from losing loved ones to this preventable disease.