List of four important allergies seen in humans: 1. Antibody-Mediated Hypersensitivity 2. Allergic Rhinitis 3. Hypersensitivity Pneumonitis 4. Cellular- Mediated Hypersensitivity. 1. Antibody-Mediated Hypersensitivity: Immediate hypersensitivity is related to the development of reaginic antibodies, usually Immunoglobulin E (IgE) and less often IgG, in sufficient quantities to evoke the symptoms of hay fever, asthma, hives, and […]