Jonas Salk: Vanquisher of Polio

He has written more #1 songs than anyone... 83 of them to be precise... most of them country. Ashley Gorley's songs have been recorded by many of the biggest names in Nashville, including Morgan Wallen, Luke Bryan, Carrie Underwood, Brad Paisley, Jelly Roll and Post Malone. But A ...  Show more

She sent shockwaves through the world of competitive swimming, when she won a gold medal at the 2012 Olympics, beating out the favorites by a wide margin. She was 15 years old. Katie Ledecky is now training for her fifth Olympics, and is indisputably the greatest female swimmer o ...  Show more

In the 1950s, polio spread throughout the United States. Heartbreakingly, it affected mainly children. Thousands died. Thousands more were paralyzed. Many ended up surviving only in iron lungs, a machine that breathed for polio victims, sometimes for years. Scientists raced to fi ...  Show more

In 1952, polio was everywhere: killing or paralyzing roughly half a million people annually. Yet just 10 years later, paralytic polio cases in the US dropped by 96% and we were on track to get rid of polio for good. But in recent years, the virus started striking back. So, what’s ...  Show more

For much of human history, polio was absolutely terrifying. People weren't sure how it spread, they had no idea how to treat it, and they realized anyone could be infected. This changed with the emergence of polio vaccination, which was considered, for the most part, a massive su ...  Show more