My oncologist said that about 50% of people who have transplants develop shingles at some point later. There are clinical trials on now with a shingles vaccine that is a dead virus. I haven't heard any results on this trial. And, who knows when, and if, it would be approved.
The ABC in Australia has an interview (May 2015) with one of the authors of a recent paper in the New England Journal of Medicine.
Both audio and a transcript is there.
http://www.abc.net.au/radionational/programs/healthreport/new-vaccine-trial-for-herpes-zoster/6479164
john