Mayo Clinic Minute: Inside a Zika Vaccine Research Lab

As officials from Centers for Disease Control and Prevention continue track the spread of Zika cases, medical researchers are busy behind the scenes working on a vaccine for the virus.

In this Mayo Clinic Minute, Dr. Greg Poland, director of the Mayo Vaccine Research Group, explains the milestones that need to be reached before a vaccine becomes the answer to the Zika outbreak. Jeff Olsen reports.