There was an outbreak in the USA in 2005 though no one suffered permanent damage: http://www.nytimes.com/2005/11/08/health/08iht-polio.html?pagewanted=all&_r=0

There was an outbreak in the USA in 2005 though no one suffered permanent damage: http://www.nytimes.com/2005/11/08/health/08iht-polio.html?pagewanted=all&_r=0 http://www.nytimes.com/2005/11/08/health/08iht-polio.html?pa...