Allergic Disease, Allergic Disorders, Allergic Illness
Viennese paediatrician Baron Clemens von Pirquet
coined the term "allergy" (from the Greek "allos" meaning changed
or altered state and "ergon" meaning reaction or reactivity) in
1906 [ ]. Von Pirquet used the
term to describe an altered reaction he had observed in patients,
which he put down to the influence of external factors, an ,
on the immune system.
reactions of the to specific substances called
(such as , ,
, or )
that, in most people, result in no .
The most severe form of allergy is , which is a medical emergency.
Various types of classifications exist.
Allergy has different names depending upon where in body it occurs.
[ ] Allergy online - Vienna Medical