I loved clinical practice, but in public health, you can impact more than one person at a time. The whole society is your patient.

The way we work in public health is, we make the best recommendations and decisions based on the best available data.

Vaccines and antibiotics have made many infectious diseases a thing of the past; we've come to expect that public health and modern science can conquer all microbes. But nature is a formidable adversary.

Over and over, nature shows that it's a really tough adversary. That's why it's important that we invest in laboratories, disease detectives, research, mosquito control, the public health system around the world to find, stop, track, prevent health threats.

The public health ramifications of our scandalous open borders are possibly even more dangerous and far-reaching than the economic and political consequences.

You can't have public health without working with the public sector. You can't have public education without working with the public sector in education.