Violence, Insecurity Blocking Polio Eradication

After three decades and 15 billion dollars, just three countries still harbor polio. Those three countries, Pakistan, Afghanistan and Nigeria, all suffer from violent insurgencies. A new study is one of the first to document how a lack of security sets back efforts to eradicate the paralyzing disease. VOA's Steve Baragona has a report.

© La Voix de l'Amérique - lundi 29 janvier 2018