Abstract
Cold contact urticaria (CCU) is a physical urticaria, also called inducible urticaria, which is triggered by exposure of the skin to cold air, surfaces or fluids. Clinical manifestations of CCU range from mild, localized whealing to life-threatening anaphylactic shock. CCU is mostly idiopathic (primary), but in rare cases it is secondary to infectious disease, with or without cryoproteins. We report here, for the first time, 4 cases of CCU that developed following vaccination, which suggests a link between these events.