0:00 In the summer of 1952, more than fifty-eight thousand Americans contracted polio.0:06 Fifty-eight thousand.0:07 And for parents, it was the sound of summer that was the most terrifying.0:13 Not crickets, not ice cream trucks...0:16 but the closing of swimming pools.0:18 The quarantine signs.0:20 The fear that your child could go to bed healthy and wake up unable to breathe.0:26 And that fear created this immense, national pressure for a cure.0:31 Last week on the show, we talked about that thin line between breakthrough and betrayal in science.0:38 This story feels like the ultimate example of that.0:42 Oh, it IS.0:43 Because into that crucible of fear stepped two men who despised each other, but who both wanted, desperately, to be the one to save the world's children.0:54 Jonas Salk and Albert Sabin.0:56 Okay, so this wasn't just a friendly, academic disagreement.1:01 This was personal.1:02 Deeply personal.1:04 Salk was, uh, polished.1:05 He was handsome, media-savvy, and a brilliant pragmatist.1:10 Sabin was...1:11 prickly.1:11 Abrasive.1:12 A scientific purist who believed he was smarter than everyone in the room — and, honestly, he usually was.1:20 And their scientific approaches were just as different as their personalities, right?1:26 This is the whole killed-virus versus live-virus debate.1:31 Exactly.1:31 Salk’s idea was to take the polio virus, kill it with formaldehyde, and inject it.1:37 The body would see the dead virus's "ghost" and learn to make antibodies.1:43 It was seen as the safer, faster route.1:46 Safer and faster sounds pretty good when thousands are being paralyzed.1:51 It does!1:52 But Sabin thought it was a sloppy shortcut.1:55 He was a purist.1:56 He believed you had to use a live virus — one that was weakened, or "attenuated," so it couldn't cause the disease but would replicate in the gut, creating a much stronger, lifelong immunity.2:11 So Salk's was like showing the guards a photograph of the enemy, and Sabin's was like letting a captured, de-fanged enemy soldier wander around the barracks.2:23 That is a PERFECT analogy.2:25 Yes.2:25 And the scientific establishment, by and large, was in Sabin's camp.2:30 They thought a killed-virus vaccine was, you know, theoretically impossible.2:36 A dead thing can't teach the body anything meaningful.2:40 It was scientific heresy.2:42 But Salk just...2:43 kept going.2:44 He famously tested his first experimental vaccine on himself, his wife, and his own children.2:51 The obsession was total.2:53 He believed he was right.2:55 And he convinced the National Foundation for Infantile Paralysis to fund the largest public health experiment in American history.3:05 In 1954, over one point eight million schoolchildren — the "Polio Pioneers" — took part in the field trial.3:13 The whole country was holding its breath.3:16 What was that final moment like?3:18 The announcement.3:19 It’s a scene straight out of a novel.3:22 April 12th, 1955.3:24 University of Michigan.3:25 A packed auditorium of scientists and reporters.3:29 The data is presented, and then the final verdict is read: "The vaccine is safe, effective, and potent." Wow.3:37 And the country just erupts in celebration.3:40 Church bells ring.3:42 People are literally dancing in the streets.3:45 Jonas Salk is not just a scientist anymore; he is a folk hero.3:50 A saint.3:50 He refused to patent the vaccine, by the way.3:54 Said it was like trying to patent the sun.3:57 So Salk wins.3:58 End of story.3:59 Not even close.4:00 Because while the public saw a hero, Albert Sabin saw a fraud.4:05 He went on the attack almost immediately.4:08 He told anyone who would listen that Salk's immunity was temporary, that his science was shoddy, and that the REAL solution — his live-virus vaccine — was still on its way.4:21 So wait — the guy who just saved the country from its biggest fear gets attacked by his main rival?4:28 That's...4:29 brutal.4:30 It's the ultimate betrayal we talked about.4:33 And for years, the scientific community sort of quietly agreed with Sabin.4:39 They gave Salk the public accolades, but they gave Sabin the scientific respect.4:45 And eventually, Sabin’s oral vaccine, which was easier to administer and provided longer immunity, did replace Salk’s injected vaccine in many places.4:56 So, in the end, was Sabin right?4:58 Did he "win" the race?5:00 I think that's the wrong question.5:03 Salk’s vaccine was the fire engine that put out a raging inferno.5:08 It arrived at the moment of peak terror and it WORKED.5:12 Sabin’s vaccine was the better, more permanent fire-proofing system for the whole building.5:19 You needed the fire engine first.5:21 The rivalry, the ego, the bitterness...5:24 it all drove them.5:25 And in their desperate race against each other, they ended up creating this two-stage pincer movement that cornered a monster.5:35 So the very thing that made them rivals — that personal, human drama — is what ultimately gave us the complete solution.5:44 Exactly.5:45 We didn't get one miracle.5:47 We got two, born out of obsession and spite.5:50 And maybe that's how the biggest breakthroughs really happen.
