Type 1 (Anaphylactic) Hypersensitivity Reaction – Definition, Mechanism, Examples
Type I hypersensitivity reaction is an immediate hypersensitivity reaction. It is also called anaphylactic hypersensitivity. It is produced against some harmless foreign substances called allergens. The allergens may be pollen, food, drugs, dust and insect venom. These substances enter into the body and the immune system reacts against them. The reaction is very fast and … Read more