logo
episode-header-image
May 2025
37m 53s

Lab Leak: Could Smallpox Come Back?

Pushkin Industries
About this episode

In 1978 the world is on the brink of declaring victory over smallpox. No cases have been seen for months, and it looks like the end for a deadly, painful disease. When a photographer in Birmingham begins to feel ill, doctors are mystified: it looks like smallpox, but how could she have caught it? As they try to contain the outbreak, questions about blame and lab safety erupt in a media frenzy, questions that remain today.


For a full list of sources, see the show notes at timharford.com.

Get ad-free episodes, plus an exclusive monthly bonus episode, to Cautionary Tales by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Pushkin+ subscribers can access ad-free episodes, full audiobooks exclusive binges, and bonus content for all Pushkin shows.

Subscribe on Apple: apple.co/pushkin
Subscribe on Pushkin: pushkin.fm/plus

See omnystudio.com/listener for privacy information.

Up next
Nov 21
Kyoto: The Battle that Defined Climate Politics - with Joe Robertson
<p>Misinformation, double-dealing, character assassination - lobbyist Don Pearlman will stop at nothing to prevent the world from agreeing to cut carbon emissions. This arch disrupter, who works for fossil fuel companies and oil-producing nations, is determined that the climate t ... Show More
39m 19s
Nov 18
Presenting: Twenty Thousand Hertz
<p>When Satanic Panic ripped through America, rock music was in the crosshairs. Could songs contain secret backwards messages urging children to take drugs and worship the devil?</p> <p>This special episode is from Twenty Thousand Hertz, a podcast all about the rich world of soun ... Show More
29m 13s
Nov 14
The Treasure Hunt that Broke America (Part 2)
Forrest Fenn’s legendary treasure hunt ignites a nationwide obsession. The thrill of adventure, the promise of gold, and the call of the wild entice many seekers into the quest. Over time, excitement gives way to conspiracy and resentment, as treasure hunters stray into increasin ... Show More
40m 42s
Recommended Episodes
Mar 2024
The Anthrax Threat I 1. Scramble the Jets
In the wake of 9/11, a handful of media and government workers started experiencing a troubling confluence of symptoms. Doctors couldn’t explain it, until they pinpointed the unlikely cause: exposure to anthrax. From Campside Media and Sony Music Entertainment, this is Season 4 o ... Show More
33m 44s
Sep 16
The Plague in San Francisco | The Year of the Rat | 1
<p>When a deadly outbreak of bubonic plague hits San Francisco, a brilliant young bacteriologist named Joseph Kinyoun is tasked with stopping the spread. But as Kinyoun soon discovers, he is battling not just the disease, but a group of politicians more concerned about profits th ... Show More
39m 40s
Mar 2024
The Anthrax Threat I 4. The Scapegoat
Acting as an amateur sleuth, one scientist claims that she has identified the anthrax killer. Does her guess hold water, or is it just another miscalculation? From Campside Media and Sony Music Entertainment, this is Season 4 of Cover Up: The Anthrax Threat. Unlock all episodes o ... Show More
43m 5s
Jul 2025
Episode 7: From Russia With Love
A Marsalek-backed ring of operatives goes on trial in the UK for espionage. A treasure trove of text messages reveals their inner workings. Get ad-free access to the entire season of Hot Money: Agent of Chaos by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Access ad-f ... Show More
36m 49s
Jul 2024
Outbreak | 1
In the fall of 2011, a high school girl in LeRoy, New York falls ill: spasms, outbursts, and uncontrollably violent movements. As the mysterious illness spreads throughout the school, a young doctor attempts to connect the dots. Is there an external pathogen? Or is what’s happeni ... Show More
28m 54s
May 2025
Nooks & Crannies
Seven people knew the recipe for a half-a-billion dollar muffin. Then, one of them tried to leave. Get ad-free episodes to Revisionist History by subscribing to Pushkin+ on Apple Podcasts or Pushkin.fm. Pushkin+ subscribers can access ad-free episodes, full audiobooks, exclusive ... Show More
31m 27s
Jul 2025
Typhoid Mary | Cook, Carrier, Captive | 3
<p>In 1906, a New York health department investigation into an outbreak of typhoid fever led to the discovery that a cook, Mary Mallon, was an unsuspecting ""healthy carrier"" of the deadly bacteria. This discovery forever altered Mallon’s life, thrusting her into a national spot ... Show More
41m 2s
Dec 2024
The Defeat of Smallpox
<p>December 9, 1979. A commission of scientists declare that the scourge of the world – the infectious and deadly virus smallpox - has been eradicated.&nbsp;This episode originally aired in 2021.</p><p><br></p><ul><li><strong>Support the show!</strong>&nbsp;Join&nbsp;<a href="htt ... Show More
18m 37s
Aug 19
FAN FAVORITE: Teddy Roosevelt's Amazon Expedition | A Killer in Their Midst | 3
<p>Challenges mount as the expedition travels farther down the river. With the end of their journey nowhere in sight, hunger and disease take their toll on the men. Colonel Rondon wonders if members of an indigenous tribe are following them … and waiting to attack. Tensions betwe ... Show More
44m 59s
Feb 2025
Nome Serum Run: Race Against Death | The Ice Factory | 2
<p>The diphtheria outbreak in Nome is spreading fast as a relay of dogsled teams races across Alaska, carrying the only available medicine. Leonard Seppala knows that if he and his lead dog Togo take a shortcut across the frozen Norton Sound, they can shave off precious time and ... Show More
43m 8s