Polio's Return Mars Day for Celebration in Nigeria

Nigeria was set to celebrate its two-year anniversary of being polio free when the government reported this week that two children have been paralyzed by the disease. The country is now planning a massive polio vaccination program, which will begin Monday. VOA's Carol Pearson reports on the challenges Nigeria and other countries face in getting to zero cases of polio.

© La Voix de l'Amérique - vendredi 12 août 2016