Anyone get a flu shot?

But those diseases were already in decline when they brought out vaccines.

There is no real proof vaccines have ever saved one life let alone millions.

I agree with that

And yet I repeat myself in regards to the former

I don’t know

Infectious diseases were not in decline. Not sure where you are getting your info. 50 million people died in 1918 to 1920 from the flu, for example. People like FDR got polio and were damaged for life. Vaccines are a scientific advancement.