We are now in a position to evaluate the impact of Covid vaccines. Overall, I believe they were a success, actually well beyond what most informed people probably anticipated in 2020. 1/ twitter.com/BallouxFrancois/status/1337851396427829251

Nicholas A. Christakis @NicholasAChristakis · Jan 12, 2023

A good thread on COVID vaccines, and a post-mortem as of now.

Tweet Jan 11, 2023

by Francois Balloux

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