A threshing floor in Santorini in Greece. Russian women using a hand powered winnowing machine in a barn. Note the board across the doorway to prevent grain from spilling out of the barn, this is the origin of the term threshold.
Psoriasis is not contagious. It is not something you can âcatchâ or that others can catch from you. Psoriasis lesions are not infectious and cannot be passed from person to person.It is okay to have contact with people who have psoriasis.t is not something you can âcatchâ or that others can catch from you. Psoriasis lesions are not infectious and cannot be passed from person to person. It is okay to have contact with people who have psoriasis.
Google+0. Psoriasis vulgaris, also called plaque psoriasis and chronic stationary psoriasis, is the most common form of psoriasis which affects 80-90% of all psoriasis patients.This is a chronic, relapsing, and inflammatory skin condition with environmental, genetic and T-cell mediated (auto-immune) etiology.oogle+0. Psoriasis vulgaris, also called plaque psoriasis and chronic stationary psoriasis, is the most common form of psoriasis which affects 80-90% of all psoriasis patients.