By MARIA CHENG September 2, 2020 UN says new polio outbreak in Sudan caused by oral vaccine By MARIA CHENG September 2, 2020 https://apnews.com/619efb65b9eeec5650f011b960a152e9 FILE – In this Wednesday April 24, 2013 file photo, a Somali child receives a polio vaccine, at the Medina Maternal Child Health center in Mogadishu, Somalia. TheContinue reading “UN says new polio outbreak in Sudan caused by oral vaccine”