Herpes zoster, also known as zoster and shingles, is caused by the reactivation of the varicella-zoster virus (VZV), the same virus that causes varicella (chickenpox).
ACIP updated their recommendations in August of 2014 on the use of Herpes Zoster vaccine for Shingles.
Included under the resource section are ACIP's updated recommendations, a clinical overview of the disease and answers from the FDA regarding the Shingles vaccine and Shingles vaccine fliers from IAC.