Birdwatch Note Rating
2023-04-07 14:06:08 UTC - HELPFUL
Rated by Participant: 264F2E6B4C51C4C9572C26671E99C0EF9F5860EC7174BCE60CA424BCE6C49305
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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