HomeTrendingHow The Polio Vaccine Was Developed (And All The Hiccups Along The...

How The Polio Vaccine Was Developed (And All The Hiccups Along The Way)

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Child vaccinated with Dr. Salk’s vaccine against polio in 1956. (Jean-Pierre Grisel/RDB/ullstein bild via Getty Images)

Polio has plagued humans for thousands of years, but the number of cases dramatically spiked in the early 20th century, even as other dreaded diseases (diphtheria, tuberculosis, and typhoid, just to name a few) were on the decline. Although the majority of people stricken with the highly contagious disease had mild cases and made full recoveries, many were left paralyzed or dependent on artificial respirators. Thanks to Jonas Salk and the polio vaccine, the C.D.C. declared polio eradicated from the western hemisphere in 1994, but getting to that point was slow progress with some horrific setbacks.

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A Failed First Attempt

Dr. John A. Kolmer of Philadelphia’s Temple University was working on a polio vaccine as early as 1935, using a weakened but live sample of the poliovirus. Kolmer’s ego was his fatal flaw: Eager to be the first scientist to develop an effective polio vaccine, he rushed into testing about 10,000 children throughout the United States and Canada, five of whom died and 10 more of whom were paralyzed. As if that wasn’t bad enough, these tests actually introduced polio to communities that had previously had no outbreaks, sickening many beyond his test subjects. The backlash was intense: Kolmer received harsh criticism from the government and fellow researchers, and some even labeled him a murderer.

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