Etymology:
Meaning and Origin:
The word "allergic" originates from the Greek term "allos ergos," meaning "other work." This term was first used in the early 20th century by Austrian pediatrician Clemens von Pirquet.
Von Pirquet noticed that certain individuals reacted differently to foreign substances (allergens) than others. He hypothesized that the body's immune system was somehow "working differently" (other work) in these individuals, leading to exaggerated immune responses.
The term "allergic" was coined to describe this altered response. It refers to the ability of the immune system to react excessively to specific foreign substances that are normally harmless to most people.
Understanding Allergic Reactions:
Allergic reactions occur when the immune system mistakenly identifies a particular allergen as harmful. The body produces antibodies called immunoglobulins E (IgE) that bind to special cells called mast cells. When the allergen re-enters the body, it binds to the IgE molecules on the mast cells, triggering the release of histamine and other chemicals.
These chemicals cause the symptoms of an allergic reaction, such as:
Etymology Allergy is a late 19th century term coined by the Austrian physician Clemen
Etymology Greek allos other foreign ergon work Meaning and Origin The w
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