Allergy: causes, symptoms, diagnosis, and management Allergy An allergy is an immune system hypersensitivity to normally harmless substances. This article explains mechanisms, common triggers, symptoms, diagnosis, treatments and differences…
Antigen: definition, types, immune role and clinical importance Antigen An antigen is a molecule or molecular structure that the immune system recognizes as foreign or distinct; it triggers or participates in immune responses and is central to vaccinat…
