| Immune reaction | Effector cells | Examples | |
| Type I | Ig-E | Mast cells | Acute Asthma, Acute Allergic Rhinitis, Anaphylaxis |
| Type II | Ig-G | Phagocytes Natural Killer cells | Hemolysis |
| Type III | Ig-G | Complement | Serum Sickness, Drug Fever |
| Type IV | |||
| Type IV a | IFNγ, TNFα | Macrophages TH1 cells | Tuberculin Reaction, Contact Dermatitis, Eczema |
| Type IV b | IL-5, IL-4/IL-13 | Eosinophils TH2 cells | Chronic Asthma, Chronic Allergic rhinitis |
| Type IV c | Perforin/GranzymeB | T cells | Contact Dermatitis, Maculopapular or Bullous Exanthem, Hepatitis |
| Type IV d | CXCL-8. GM-CSF, IL-17 | Neutrophils T cells | AGEP, TEN, SJS, Behçet Disease |