Birdwatch Note Rating
2023-04-07 15:48:09 UTC - HELPFUL
Rated by Participant: 83A90D204EE1240906D2D2C35AB176BDA93CBCBFEB5B79320F9EC2BF364B1F2C
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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