Vaccine rollouts have always been fraught. Sam Kean tells the story of the Balmis expedition, which brought the smallpox vaccine to the Americas. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

Vaccine rollouts have always been fraught. Sam Kean tells the story of the Balmis expedition, which brought the smallpox vaccine to the Americas. Learn more about your ad choices. Visit megaphone.fm/adchoices

Vaccine rollouts have always been fraught. Sam Kean tells the story of the Balmis expedition, which brought the smallpox vaccine to the Americas. Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices" rel="noopener noreferrer">megaphone.fm/adchoices</a>

The first global vaccination | Today, Explained in 10

A bite-sized daily podcast from the Culture and The Goods teams at Vox that goes wherever our (and your!) pop culture and consumerism curiosities take us. Hear the stories behind the news and trends, get personal about purchases, and find your next book or binge watch. New episodes daily, Monday to Friday. Each 15 minutes or less.

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The first global vaccination | Today, Explained in 10

The first global vaccination | Today, Explained in 10