moderna 疫苗的有效性在老年組的數據是公開的

https://www.npr.org/sections/health-shots/2020/12/15/946554638/fda-analysis-of-moderna-covid-19-vaccine-finds-it-effective-and-safe

The vaccine is less effective in older people, the FDA analysis finds. For people ages 18 to less than 65, the effectiveness is 96%, compared with 86% for people 65 and older.

老年組有效率必然低一些。如果牛津的疫苗18-55組隻有70%，那老年組高不了。

pfizer 疫苗老年組的有效性好像也是發表了。是93.7%？