Catching viruses before they become pandemics

Biologist Nathan Wolfe
Nathan Wolfe is a visiting professor of human biology at Stanford University and director of the Global Viral Forecasting Initiative.
Michael Brands/Courtesy of the Aspen Ideas Festival

Nathan Wolfe, visiting professor of human biology at Stanford University and director of the Global Viral Forecasting Initiative, spoke at the 2009 Aspen Ideas Festival about his research into how viruses move from animals to humans -- and how to slow their spread.