The first polio case in the U.S. in nearly a decade was recorded in Rockland County, New York, this spring. Now, authorities believe there could be hundreds of unreported cases in the area.Polio was one of the most feared diseases in the U.S. in the early 1950s, causing more than 15,000 cases of paralysis a year.The U.S has been considered polio-free since 1979. But this latest outbreak could threaten that status.We discuss how we can prevent polio from returning to the U.S. and how you can protect yourself and loved ones. Want to support 1A? Give to your local public radio station and subscribe to this podcast. Have questions? Find us on Twitter @1A.