Birdwatch Note Rating
2021-09-23 21:19:55 UTC - NOT_HELPFUL
Rated by Participant: 0D16FA46E2E747F420075F7E260064A62E8BD0D75F849A1E4361D0CC0C7D33E8
Participant Details
Original Note:
It was tested through a rigorous scientific trial of multiple phases. Efficacy for prevention of transmission, severe disease / death were evaluated in those phases. https://www.cdc.gov/vaccines/basics/test-approve.html The "success rate" of the vaccine since trials has not been measured using people with prior infections.
All Note Details