If nothing else, it's a good reminder that science is never settled and hardly ever a good basis for bullying and demeaning others.
As a matter of fact, science often doesn't agree with itself on subjects such as this. The CDC says the shingles vaccine provides protection for 7 years without qualifiers, yet the Cleveland Clinic says it may only provide protection for 4 years if you're older (70 or above).
https://my.clevelandclinic.org/healt...ingles-vaccine
I'm now on the cusp of 70 and received both doses of the vaccine several years ago upon recommendation of my PC physician who told me it would provide lifetime protection. I wonder if it's still active?