Birdwatch Note Rating
2023-04-07 16:09:02 UTC - HELPFUL
Rated by Participant: 46714F2916C1FC7A243EA09DB5CB9A214253C5EA1DB17A3C8EE5A290C2B54992
Participant Details
Original Note:
Vaccines normally require a study on their efficacy before being approved. Independent governments and health agencies all over the world tracked the efficacy of the vaccine over time, taking into account factors such as new variants originally not known. https://www.nejm.org/doi/full/10.1056/nejmoa2110345
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