Birdwatch Note Rating
2023-08-26 07:08:26 UTC - HELPFUL
Rated by Participant: 7C1BC6C4C6223DB269717C060ED10B1202B1974577E2D34BBE84E1ACD3D0C572
Participant Details
Original Note:
Annual flu vaccine RCT's are not feasible. Vaccination RCTs require both very large sample sizes & either: long time period (years) or many infections in a short time. Most flu cases happen over a very short time period & you need the majority of people vaccinated BEFORE then https://www.cdc.gov/flu/vaccines-work/effectivenessqa.htm
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