Birdwatch Note Rating
2023-04-07 23:44:07 UTC - HELPFUL
Rated by Participant: F0049203734802940DD41A8E45EC2DEE2DDEC851DF8AB7B6D74EBDF4C82A9331
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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