Birdwatch Note Rating
2023-02-01 19:35:14 UTC - NOT_HELPFUL
Rated by Participant: 7036B9689FD2599459F33BC8F6351800A6470CADA97CF19DDC69CDDE239E1911
Participant Details
Original Note:
Pfizer's Covid-19 vaccine underwent a rigorous 3 phase trial. Pfizer's phase three (safety and efficacy) clinical trial began in late July 2020 and the results were published in December 2020, and showed adequate information for the FDA to approve it. https://research.northeastern.edu/heres-what-it-takes-to-test-a-covid-19-vaccine-with-clinical-trials/
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