cthechartreuse

cthechartreuse t1_is3yw9s wrote

This is interesting information.

I did a little deeper digging to see what I could find about vaccines and breakthrough infections. It turns out there are a number of diseases which have breakthrough infections including, but not limited to, COVID-19, influenza, mumps, and chickenpox.

Most recently, a smallpox vaccine has been used to stimulate the immune system to fight monkeypox, which has seen breakthroughs in France.

I wonder whether COVID-19 was the genesis of the change, or simply the final straw.

1

cthechartreuse t1_is380oz wrote

The definition of vaccine has not been changed. There is a formal definition which has been pretty consistent since the discovery that inoculating people with cowpox could boost the immune response against smallpox (cow <-> vaca -> vaccine)

It's worth noting that the flu vaccine does not stop all variants of influenza either. The notion that a vaccine will magically stop any and all variants of a virus is naive.

Also, since you did no homework, here's the definition of vaccine:

https://letmegooglethat.com/?q=vaccine+definition

4