Abstract
Pemphigus is a rare group of autoimmune diseases manifested by vesicles or blisters on skin or on mucous membranes. It has a global incidence and in São Paulo State, Brazil, the Northeastern region has the biggest number of occurrences of Pemphigus Vulgaris (PV) and Pemphigus Foliaceous (PF). There is an assumption that genetic factors are not enough to cause the disease outbreak, thus en…