NANGARHAR, July 20, 2016 (Xinhua) -- An Afghan returnee child receives a polio vaccine at a United Nations High Commissioner for Refugees (UNHCR) camp in Nangarhar province, Afghanistan, July 19, 2016. The United Nations refugee agency has increased assistance package for registered Afghan refugee families, who are opting to return to Afghanistan under the UNHCR facilitated voluntary return program. (Xinhua/Rahman Safi)
