UNICEF said that 12.7 million children in Afghanistan have been vaccinated against polio through ongoing immunization campaigns.
World Polio Day is observed annually on October 24 to raise awareness and strengthen global efforts to eliminate the disease.
According to the World Health Organization, 42 cases of wild poliovirus type 1 have been recorded in Afghanistan this year.
Addressing a ceremony in Islamabad to launch Pakistan's campaign, he said they aim to immunise millions of children