Birdwatch Note Rating
2023-04-07 13:50:30 UTC - HELPFUL
Rated by Participant: 43CCB2C82BC01128486C1A794767FCD0E702B4FE3B57E37E6166C163184F630B
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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