SHINGLES IS CONTAGIOUS?

This question seems legitimate to the extent that the shingles is caused by a highly contagious virus, the virus that causes chickenpox. Yet, no, the zona is not spread from one person to another.However, be careful not to catch chickenpox in contact with a person who had an attack of shingles !

Shingles is caused by a reactivation of the chickenpox virus

The Shingles is characterized by a painful skin rash, causing burning and itching.This event often sits on one side of the chest or back. 
Shingles affects mostly people over 50 years, with a marked increase in the incidence of herpes zoster with age. All people with shingles have in common, the latter having had chickenpox. In fact, the shingles is caused by a reactivation of chickenpox virus. You should know that after having contracted chickenpox, most viruses are eliminated except a few that remain latent in the ganglia. Probably at a lower immune defenses, they can reactivate and causeshingles. Thus 20% of people who have had chickenpox develop a shingles at some point in their lives.

Shingles is it passed from one person to another?

The answer is no, the shingles is not contagious. It is not possible to develop shingles after being in contact with a person with a shingles. 
However, under certain conditions, a person in contact with a subject suffering from shingles can develop chickenpox. For this, we must never have caught chickenpox (10% of the population). Then you have come into contact with the contents of the vesicles. 
During a crisis zoster vesicles form (buttons) filled with a liquid containing particles of the chickenpox virus. These particles can infect someone else if they come into contact with mucous membranes. Just for example, rub your eyes or mouth with a hand soiled by the virus.

This contamination may be dangerous for people with weakened immune systems, but also for infants and for pregnant women (dangerous to the fetus).
Any person with a crisis of shingles should avoid people at risk: very young children, pregnant women and immunocompromised patients.