For people age 50+, a 2nd booster has been shown in multiple reports to save lives and/or reduce severe disease
In the US, % with 2nd shot by age
age 50-64: 9%
age 65+: 23%https://t.co/pX5XK22ppO pic.twitter.com/828TrnhXTf

— Eric Topol (@EricTopol) July 19, 2022