LOL! Bringing back an eleven year old thread to bash vaccines?
However:
https://www.cidrap.umn.edu/news-pers...older%20groups.
It worked very well in the 10 to 49 age group, less well in those younger than that, and not at all well in seniors.
"Researchers calculated the overall effectiveness of the pandemic vaccine at 56%. For the inactivated vaccine, they found that vaccine effectiveness was 89% (95% confidence interval [CI], 15% to 99%) in those aged 10 to 49, though they didn't find significant effectiveness in younger and older groups. Effectiveness in children aged 6 months to 9 years was 32% (95% CI, -92% to 76%), and for people over 50 it was -6% (95% CI, -231% to 66%).