Inside the Making of the Flu Vaccine
An in-depth look at the CDC process. (It’s basically a high-stakes game of biological matchmaking.)
Published in
8 min readOct 7, 2019
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Toward the end of last year’s flu season — in about the middle of winter — flu experts noticed that the number of infections was not dropping, but picking up. A new virus seemed to be emerging, and it was making many Americans sick.