Vaccines vs Shots

[JonC]

@Dr. Bob ,
I'm quoting you here to introduce a discussion (I don't want to discuss vaccines vs shots on Scarlett's thread). But I am not sure you are correct here:

A vaccine is permanent (may have to have two shots) to stop getting a disease. That is by definition. Hence polio vaccine is 99.999% permanent. As with small pox. Most of us have had vaccines.

A shot is temporary (no matter the number) to lessen or stop certain strains. That is by definition. People get a flu "shot" (not vaccine) in hopes that the blend of antibodies in that year's "shot" will lesson impact. Couple years ago the "shot" hit the mark 0% and people got the flu in record numbers.

Regarding the polio vaccine, the CDC indicates it is not permanent. Here is another article:

"The question therefore arises: What is the duration of immunity, assuming that polio vaccination has been effective? In no disease is there permanent immunity after original vaccination."

How Good Is the Polio Vaccine?


I know the Chickenpox vaccine lasts 10 to 20 years and the Hepatitis vaccine up to 20 years.

If you are willing, I am interested in sources defining shots vs vaccines based on vaccines providing permanent immunity.