Pakistan launched its second nationwide anti-polio campaign of the year to inoculate tens of millions of children.
![Polio vaccine Syria [Getty]](/sites/default/files/styles/image_156x88/public/media/images/01E1F7C5-5DF6-4BA6-BC0C-E76ED104C955.jpg?h=d1cb525d&itok=YeZZ2Ndt "Polio vaccine Syria [Getty]")
