Can Polio Workers Overcome Complacency, Conflict, Donor Fatigue to End the Virus?

The world is close to eliminating the threat from polio, but to eradicate the disease, it must be eliminated everywhere. Health officials say that’s the tricky part, because if the virus responsible for the crippling disease exists anywhere, it can still spread worldwide. Sadie Witkowski reports on the challenges that face polio eradication efforts.