Birdwatch Note Rating
2023-04-07 14:06:28 UTC - HELPFUL
Rated by Participant: 8A8AA88D8E49FBE11836985AA441792F59F189DE68D9187F928A493B67958D52
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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