There’s two expensive books upstairs, that I’ve been reading since May, with information on herpes zoster and varicella. Shingles is contagious, unless contagious changed its definition or something. The herpes family is large and all of the ones that can infect humans do it mostly through direct contact, person to person.
Also dude came in the first few days, when shingles is most contagious. I’ve been vaccinated but there’s no record or memory of me having chicken pox. I definitely don’t want it as an adult (it would be really bad).