A second concern is spread of the infectious viral disease from Pakistan to other parts of the world -- cases diagnosed this year in Afghanistan have been linked directly to virus from Pakistan , he said . NEW : They were kidnapped for having supported a polio vaccination campaign , official says . The school is in the volatile tribal Khyber Agency . Score: 7
NEW : They were kidnapped for having supported a polio vaccination campaign , official says . The school is in the volatile tribal Khyber Agency . Score: 7