This is the ~4 year old Shingrix vaccine (2 doses required). There was an older vaccine, but the newer one is head over heels better, I hear. Even though I had had the older one, I got the new one too, after my 51-ish yr old brother got a bout of shingles. (Age uncertain because I don’t recall when the Shingrix vax became available - he had a bout a year or so before.)
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