The idea was born over drinks at the Hard Rock Hotel in Davos Switzerland, on January 23, 2020.

There was a new virus ringing alarm bells in China, but it hadn't yet become an international concern. It didn't even have a name. Yet Seth Berkley was already thinking about how to protect the world with vaccines against it.

Berkley was the CEO of Gavi, the Vaccine Alliance, a nonprofit group dedicated to expanding access to vaccines around the globe.

He and some of his colleagues at the World Economic Forum didn't know whether it would be possible to come up with a vaccine for the virus that would soon be called SARS-CoV-2. But they figured if scientists pulled it off, the next challenge would be to ensure that every country, regardless of its wealth, would have plenty of vaccines for its c

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