Did you know? Before the U.S. Food and Drug Administration (FDA) approves or aut…

Did you know? Before the U.S. Food and Drug Administration (FDA) approves or authorizes a vaccine, the vaccine goes through rigorous clinical trials to make sure it works well. Once trial results are reviewed, FDA can decide whether to approve a vaccine or authorize it for emergency use in the United States.

After FDA approves a vaccine or authorizes a vaccine for emergency use, CDC and other federal partners assess COVID-19 vaccine effectiveness under real-world conditions. Learn more: https://bit.ly/39KCHEh.

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