Extras

Video thumbnail: NOVA This University Monitors COVID-19 Through Saliva Testing

NOVA

This University Monitors COVID-19 Through Saliva Testing

The University of Illinois is trying to control the spread of COVID-19 by collecting spit.

This University Monitors COVID-19 Through Saliva Testing

Video thumbnail: NOVA Secrets in our DNA Preview

NOVA

Secrets in our DNA Preview

What can DNA testing companies reveal about our ancestry and health, and at what risk?

Secrets in our DNA Preview