Global outbreaks: How effective is traveler screening?

When their is a global infectious disease outbreak, one action governments take is traveler screenings--we saw it during the 2014 Ebola outbreak and we are seeing it with the current COVID-19 outbreak. So, how effective are traveler screenings? My guest today addresses this issue in a recent study published in eLife. Joining me is Katelyn Gostic, PhD. Dr Gostic is with the Dept. of Ecology & Evolution at the University of Chicago and the lead author of the study.