To crack Ebola's code, scientists search for animal host

Aired: 6/4/2015 | 0:08:33 | Clip
The deadly Ebola virus normally spreads among animals but occasionally spills over to humans, to dire effect. To understand how such diseases make that jump, scientists must find the animal host. But the hunt for live samples of Ebola in animals has never turned up a smoking gun. Science correspondent Miles O’Brien follows epidemiologists in Sierra Leone on their hunt for deadly diseases.