Shingles, also called Herpes zoster, is an itchy skin disease that causes blisters, and it can only be transmitted from one person to another by direct contact with the blisters on the skin of the infected person, otherwise it is not considered a communicable disease. But prudence dictates that you stay away from work to avoid causing your body undue pain as well as awkward situations among co-workers. Also, patients with shingles in early in the blistering stages are not a pretty sight.
I want to say that a young man with shingles came to my house, next, a friend of mine got shingles, then I got shingles! How can the CDC say shingles is NOT contagious? (No one touched each other, either!)