'Blind alleys are always opportunities': The scientist who developed the polio vaccine 63.7%
BBC - By Greg McKevitt - 4/6/2026, 11:00 AM
Anecdotal 14% - Negativity Bias 11.7% - Post Hoc (False Cause) 11.1%
On 12 April 1955, Dr Jonas Salk announced that his vaccine was safe and effective. It would go on to save countless lives – but he refused to profit from it. In 1982, Salk talked to the BBC about his breakthrough. "Humanity received some of the brightest news in all its history." That is how one US reporter described the announcement, in... more