Hypersensitivity Reactions: Types, Causes, and Clinical Management
1. Introduction A hypersensitivity reaction represents an exaggerated, inappropriate, or misdirected response of the human immune system to an antigen. The immune system is biologically designed to protect the body by identifying and neutralizing harmful pathogens, such as viruses and bacteria. However, in states of hypersensitivity, this sophisticated defense mechanism reacts aggressively to environmental substances … Read more