A four day anti-polio vaccination drive began in Balochistan and Sindh on Monday. In Balochistan, the drive has is being conducted in eight districts of Jaffarabad, Naseerabad, Zhob, Loralai, Barkhan, Qila Saifullah, Musa Khel and Sherani. During the campaign, more than 600, 000 children below the age of five will be administered polio drops. As many as 800 teams have been constituted for the purpose. Meanwhile, the campaign began in Karachi. During the campaign, over 1.8 million children under five years of age in 161 Union Councils will be administered vaccine drops.