Until the 1950s thousands of Americans were paralyzed by polio every year. To save their lives they had to stay in ‘iron lungs’.
— Max Roser (@MaxCRoser) December 11, 2017
The vaccine ended polio in the US shortly after.
Our entry on polio is telling the global history of the disease https://t.co/5DR0BPzUyR pic.twitter.com/rPlt9QvqLD
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