A Pakistani health worker gives polio vaccine to a child in eastern Pakistan’s Lahore, on March 14, 2012. A total of 198 polio cases had been reported in 2011 throughout the country, Pakistan Pediatric Association said. <Photo: Xinhua/Sajjad>
A Pakistani health worker gives polio vaccine to a child in eastern Pakistan’s Lahore, on March 14, 2012. A total of 198 polio cases had been reported in 2011 throughout the country, Pakistan Pediatric Association said. <Photo: Xinhua/Sajjad>
