Birdwatch Note Rating
2023-04-07 17:54:30 UTC - HELPFUL
Rated by Participant: 082D7880988D60E41363C038B7319A83F8F316B2655E08364AE3752EA34C9EC7
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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