I thought I would post an update on the Shingrix situation here. There is and has been a shortage of the vaccine. It seems it's getting better but there still will be shortages according to what I'm reading. This consumer reports article is from March 5th so the most up to date article that I can find on the shortage.
https://www.consumerreports.or...
This article addresses the shortage & what you might be able to do to find the shot as well as some good info. comparing Zostavax (original shingles vaccine) to the Shingrix.
https://www.goodrx.com/blog/sh...
Here are a couple tools for finding Shingrix and the 2nd link is not limited to only the Shingrix vaccine but covers all (or most) vaccines.
https://www.shingrix.com/shing...
https://vaccinefinder.org