Hypersensitivity reactions.

TYPE I:
- Anaphylaxis.
- Allergic and atopic disorder.

TYPE II
- Hemolytic anaemia.
- Pernicious anaemia.
- Idiopathic thrombocytic purpura.
- Erythroblastosi -s Foetalis.
- Acute hemolytic trasnfusion reaction.
- Rheumatic fever.
- Good pastures disease.
- Bullous Pemphigoid.
- Pemphigus Vulgaris.
- Myasthenia Gravis.

TYPE III
- SLE.
- Rheumatoid arthritis.
- polyareteritis nodosum.
- PSGN.
- Serum sickness.
- Arthus reaction.
- Hypersensitivit -y pneumonitis (farmers
lung).

TYPE IV
- type I DM.
- MS.
- GB synd.
- Hashimotos Thyroiditis.
- Graft vs Host dsz.
- PPD.
- Contact dermatitis.