Earlier today, I had the second of two shots of Shingrix, the new shingles vaccine.
Here's an article to consider:
https://www.nytimes.com/2018/04/09/well/why-you-should-get-the-new-shingles-vaccine.html?rref=collection%2Fsectioncollection%2Fhealth&action=click&contentCollection=health®ion=stream&module=stream_unit&version=latest&contentPlacement=9&pgtype=sectionfront