MS NOW

What the Ebola outbreak means for the world

The worst Ebola outbreak in history has lead to 4,000 infections, 2,000 deaths, and could have grave implications for the world's future.

A neighbor of an Ebola virus victim looks at medical workers of the Liberian Red Cross carry his body on Sept. 4, 2014 in the small city of Banjol, 30 kilometres of Monrovia, Libera.
A neighbor of an Ebola virus victim looks at medical workers of the Liberian Red Cross carry his body on Sept. 4, 2014 in the small city of Banjol, 30 kilometres of Monrovia, Libera.AFP/Getty Images

Dr. Margaret Chan, M.D.