Birdwatch Note Rating
2023-04-07 08:46:18 UTC - HELPFUL
Rated by Participant: 3DA4EAD9C85C7FD43C62759D31CC4670140B80508556075465BADE25FA3B664A
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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