[Jolter]

If you have already had shingles as an adult, aren’t you fairly well protected for the next ten years or so, at least? I’d wager that you are one of the people least at risk since your immune system is already primed and readying suppress the virus that’s latently infecting you.

[tptacek]

You are more likely to have a recurrence of shingles after once having it before. At any rate, I had mine more than 10 years ago.

[DANmode]

Yep! You rarely kill off all of the bugs.

Usually just most, except some in your organs where your immune response is different, out of necessity.

Then, if your immune functionality drops below a certain threshold that they can replicate inhibited, and leave the fort, you’re dealing with a systemic infection again.