Type IV Allergy: Causes, Symptoms & Treatment
The type IV allergy is thereby the so-called “reaction of the delayed type” or also of the “cell-mediated type”. It involves reactions of immune cells to foreign antigens, sometimes lasting for days, which can show up on the skin, for example. Classic examples are contact allergies such as nickel allergy, but transplant rejections also belong … Type IV Allergy: Causes, Symptoms & Treatment