On that page they apparently cherry picked from two years of their own data. See bar chart mid-way through this page. https://www.cdc.gov/flu/vaccines-work/effe

On that page they apparently cherry picked from two years of their own data. See bar chart mid-way through this page. https://www.cdc.gov/flu/vaccines-work/effectiveness-studies.htm https://www.cdc.gov/flu/vaccines-work/effectiveness-studies....