NEW : Pakistan is three of 10 countries in the world where polio has yet to be eradicated . NEW : After the number of cases spiked sharply last year , Pakistan stepped up its eradication efforts . The the Global Polio Eradication Initiative announced a ban on polio vaccinations in June . three workers have been killed in recent months . Polio have viewed polio vaccination campaigns with suspicion .
NEW : Pakistan is three of 10 countries in the world where polio has yet to be eradicated . NEW : The the Global Polio Eradication Initiative announced a ban on polio vaccinations in June . three workers have been killed in recent months . Polio have viewed polio vaccination campaigns with suspicion .