Lahore - Polio teams continued to go door-to-door to vaccinate children as the ongoing special polio eradication drive entered second day on Tuesday. One the first day of the campaign, more than 3 million children have been vaccinated in the 12 districts where campaign is being held. In Bhakkar more than 120,000 thousand children were vaccinated on the first day of he campaign. While in Dera Ghazi Khan, Faisalabad and Lahore, more than 256000, 353000 and 438000 children were vaccinated respectively.