https://www.bbc.co.uk/iplayer/episode/b0445c5d/the-battle-to-beat-polio “Stephanie discovers that it is the story of decades of battling between good and bad science, celebrity scientists with giant egos, prepared to take enormous risks to be first with a vaccine, and countless innocent victims.” The Battle to Beat Polio, BBC4 tv documentary. Very interesting. I’ll have to leave it for others to comment in more detail, severe brain fog here... but I’ll try and put down a few key points: - First reported polio epidemics only occurred in early 1900s with the arrival of improved sanitation, in one example 9/10ths of cases were from prosperous neighbourhoods, it became regarded as a disease of the clean. - Britain showed little to no interest in trying to understand the cause of polio, only coping with symptoms. - It was left to America and research funded by rich philanthropists, and efforts later lead by a President, Franklin D Roosevelt, who himself had the disease. - Early research on vaccine development set back 30 years by the power and ego of one man. - Medical fraud in early efforts to produce effective vaccine. - Fewer ethical restrictions placed on scientists in those days, meant potentially faster breakthroughs (and greater risk for research subjects).