Since December 8, 2020, 24.5% of the world’s population has already been vaccinated against Covid-19 with sera from Pfizer-BioNTech, Moderna or AstraZeneca laboratories.

All these vaccines have one thing in common: they were developed in record time: less than a year. Unheard of in the history of medicine. We could be happy about it, but many people are also worried: what if we had gone too fast? Did we really take enough time to be sure the vaccine is safe?

Gary Dagorn is a journalist in the “Decoders” department of World, he takes stock of what nine months of vaccination and scientific knowledge have taught us.

An episode produced by Jeanne Boëzec, directed by Amandine Robillard and presented by Jean-Guillaume Santi.

Find out more:

“Time of the World”

“L’Heure du Monde” is the daily news podcast of the World. Listen to a new episode every day from 6 a.m. on Lemonde.fr or on Spotify. Find all the episodes here.

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