AstraZeneca vaccine is 80.4%, Pfizer vaccine is 71.4% effective in elderly people: Study

Although the vaccine developers and WHO insist that the vaccine is effective among people aged over 65, several countries advise against administering it.

from http://www.firstpost.com/health/astrazeneca-vaccine-is-80-4-pfizer-vaccine-is-71-4-effective-in-elderly-people-study-9374831.html