Vaccines used to introduce the actual virus to the body, and obviously it's not dangerous. The two most successful vaccines were developed eventually with fiser. They used a radical technique but there was never certainty that they would work. But of course, we all have doubts in the privacy of our own home about those kind of stories even when we're telling them.
In the race for a COVID vaccine, how did a couple of companies who had never produced a successful vaccine make it to the finish line so quickly? Gregory Zuckerman talks about his book, A Shot to Save the World, with EconTalk's Russ Roberts about the daring, deranged, and damaged visionaries behind one of science and medicine's great success stories.