Pakistan begins polio vaccination campaign for 24 million children Aiming to eradicate polio, Pakistan has started a new vaccination campaign for about 24 million children in 97 regions of the country. Pakistan's National Emergency Operations Center has announced that this campaign will continue from November 11 to 8. According to official statistics, since the beginning of this year, Pakistan has recorded 7 cases of polio virus type 1, of which 5 were reported in Khyber Pakhtunkhwa and 2 in Sindh.