Does immunity from having the shingles wane over time too?
Whatever they say, don't believe them.
I have had chicken pox multiple times. I know someone who has had it 6 times. Yet, many docs say you only get it once. That's because they don't read the literature.
Don’t know the answer to your question but here are a few details to add that I do know. I was just in an immunization clinic on Thursday to pick up some typhoid pills for an upcoming overseas trip when I was asked whether I ever had the shingles vaccine… I said “no but tell me about it.” What I was told is that the current vaccine is a one shot deal that is approximately 60% effective (not sure how ‘effectiveness’ is determined). Shingrex is due to come out in January and it is supposed to be approximately 95% effective. It’s a two shot deal… didn’t say how far apart the two shots are. The cost of it will be about 80% more than the current vaccine.