A polio worker administers polio vaccine drops to a boy in Karachi March 9, 2014. Pakistan is also the only polio-endemic country in the world where polio cases rose from 2012 to 2013, a statement ... more 
A polio worker administers polio vaccine drops to a boy in Karachi March 9, 2014. Pakistan is also the only polio-endemic country in the world where polio cases rose from 2012 to 2013, a statement from the World Health Organization said. There were 91 cases last year but only 58 the year before. REUTERS/Akhtar Soomro (PAKISTAN - Tags: HEALTH) less 
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Reuters | Photo By AKHTAR SOOMRO / REUTERS
Sun, Mar 9, 2014 8:05 AM EDT