Birdwatch Note Rating
2023-08-25 23:21:27 UTC - HELPFUL
Rated by Participant: B6BE2E51A4C7A889DE62008427E0E9A798B1B3026E1E9F3AB7537B0FF4238029
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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