The current shingles vaccine is rna based. Something like 98% effective and highly recommended.
Shingrix is mRNA?
I do not believe that is true.
Neither ZOSTAVAX® nor Shingrix™ are mRNA-based.
https://pubmed.ncbi.nlm.nih.gov/32703745/
On January 5th, 2022 it was announced that Pfizer was going to develop an mRNA shingles vaccine with BioNTech, but I doubt it is on the market yet.
https://greekreporter.com/2022/01/05/pfizer-shingles-mrna-vaccine-biontech/