Global Health Pbs Newshour

Watch Video | Listen to the AudioGWEN IFILL: Public health officials around the world are sounding the alarm this week about the return of polio. It’s a big shift from just two years ago, when some experts thought they were on the verge of eradicating the disease. RELATED LINKSPolio vaccine campaign faces extemist opposition, public apathy in Pakistan Will polio outbreak inspire international community to do more about Syria? Program on polio eradication suspended in Pakistan after 9 aid workers killed Jeffrey Brown has the story. JEFFREY BROWN: The World Health Organization calls it an extraordinary event that threatens the decades-long battle to wipe out polio. On Monday, the agency declared an international public health emergency. Bruce Aylward is leading the WHO polio effort. He spoke during a teleconference from Geneva. BRUCE AYLWARD, World Health Organization: While the virus has resurged, I think it reminds us that, until it’s eradicated, it is going to spread internationally and it’