Islamabad [Pakistan], October 20 (ANI): Pakistan is set to launch a nationwide polio vaccination drive with an aim to immunise over 4.5 million children across the country on October 25, as per ARY News, citing sources. The campaign will take place in three phases, with the first phase starting in the Sindh province, ARY News stated. The first phase will start in Sindh on October 25, followed by the second phase starting on October 28 in Khyber Pakhtunkhwa. The third phase will start on November 11 in Punjab, Balochistan, and Islamabad, as per ARY News. Over 4.5 million children are to be vacc…