They do vaccinate for shingles, they do use a live virus. For almost all of its history, shingles was an old timer disease. I worked at Walgreens when they began this vaccine campaign and I noticed a high uptick in shingles cases in a population that was not known for shingles infection. I believe it is that vaccine that is causing the shingles problems in young and middle age adults.

Also, from what we have been told, shingles lies dormant in the cells until the body is under stress. A potential mild covid infection contracted from a vaccinated person could lead to a shingles infection as the immune system is lowered. Secondary infections are common after a viral infection, mild or not. They are usually bacterial in nature though but this may be a new anomaly and not out of the realm of possibilities. Hope this helps.