Birdwatch Note Rating
2023-04-07 22:30:56 UTC - HELPFUL
Rated by Participant: 8DA04521E5F779D5C71BA693DB20C3DC536D4C5D0B93050A0BF360BC82E4CFDF
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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