In this article we will discuss about Hypersensitivity in human body:- 1. Meaning of Hypersensitivity 2. Forms of Hypersensitivity 3. Skin Tests. Meaning of Hypersensitivity: Von Pirquet coined originally the term allergy (grallos, altered, changed; ergon, action) to describe the altered reactivity of an animal after exposure to a foreign antigen. The allergy included both immunity and hypersensitivity. It is [...]
The following points highlight the top four types of hypersensitivity in human body. The types are: 1. Anaphylactic Reactions (Anaphylaxis) - Type I 2. Cytotoxic or Cytolytic Reactions- Type II 3. Toxic Complex Syndrome- Type III 4. Delayed Hypersensitivity. Hypersensitivity: Type # 1. Anaphylactic Reactions (Anaphylaxis) - Type I: If a guinea pig is injected with a small dose of [...]
The following points highlight the top eight types of common allergies in Humans. The types are: 1. Pollen Allergy 2. Food Allergy 3. Infection Allergy 4. Serum Reactions 5. Delayed Serum Reactions 6. Atopy 7. Drug Idiosyncrasies 8. Binding Power of Tissues. Common Allergies: Type # 1. Pollen Allergy: The pollen (sperm cells) of many plants—grasses, roses, rag weed—may cause [...]