Is Shingles Contagious?
People who have never had chickenpox are at risk for developing the illness if they come in contact with a shingles patient’s blisters.
By Roni Caryn Rabin
May 25, 2018
Q. Is shingles contagious?
A. Shingles, the painful and blistery rash that arises when the chickenpox virus becomes reactivated, can be contagious, but only for people who are not already immune to chickenpox. Those who have never had chickenpox or been vaccinated against it are at risk for developing chickenpox — not shingles — if they come in contact with fluid from the blisters of a shingles patient.
https://www.nytimes.com/2018/05/25/well/live/is-shingles-contagious.html