I agree with your points as there no empirical evidence yet but the death and suffering rate significantly decreased after vaccination. I observed it in my family, friends, and relatives too. My wife last year had very severe symptoms including neurological effects caused her to be hospitalized. Her oxygen levels droped significantly and her body badly inflamed. After vaccinations, this time, her symptoms were manageable and did not need hospitilization and she recoved timely. I agree on the variables you mention. Thank you for enhancing the meaning of my article. I appreciate your time to read and generously comment. Readers like you always inspire me.