Birdwatch Note Rating
2023-04-07 16:33:27 UTC - HELPFUL
Rated by Participant: BEF590FDC6FDB7A072B66EFD627974159A06A99AA5F3A653E76942F8E6782119
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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