Pakistani health worker Naela Emanuel, 18, left, gives a polio vaccine to child in a Christian neighborhood in Islamabad, Pakistan, Tuesday, July 17, 2012. Only Pakistan, Afghanistan and Nigeria are on the World Health Organization's list of countries where polio is endemic yet last June, Taliban in North Waziristan, Pakistan announced a ban on all polio vaccinations until U.S. drone assaults in that area end, effectively ensuring tens of thousands of children under five will not be vaccinated.
Muhammed Muheisen Associated Press