Birdwatch Note Rating
2023-04-07 10:02:13 UTC - HELPFUL
Rated by Participant: FA0FA8E0A174B754AAC14E86EAAB4554FC0FA2EEDB1B4323EBA6CC61275633A1
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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