Anaphylaxis (also known as an anaphylactic reaction, anaphylactic
or allergic shock) is the most dramatic and potentially severe
expression of allergy in which the allergic response triggered by a
certain allergen involves more than one body organ and very often
organs which are essential for survival.
In a person predisposed to allergy, once that he/she has become
allergic to a certain substance (which in medical terms is known as
becoming sensitized to that substance) even minute quantities of
the allergen can trigger the allergic symptoms. Even though this is
not a rule, people with anaphylaxis are often very sensitive to the
allergen and therefore their symptoms are prompted by contact a
very small quantity of allergens.
In many cases (although not always) anaphylactic reactions can be
so severe as to put the person’s life in danger. The major risk is
when the anaphylactic reaction involves organs essential for
sustaining life, such as the heart, blood vessels or organs
involved in breathing, causing an important failure in their
function. Anaphylaxis (also known as an anaphylactic reaction,
anaphylactic or allergic shock) is the most dramatic and
potentially severe expression of allergy in which the allergic
response to a certain allergen involves more than one body organ or
even the whole body.
In many cases (although not always) anaphylactic reactions can be
so severe as to put the person’s life in danger. The major risk is
when the anaphylactic reaction involves organs essential for
sustaining life, such as the heart, blood vessels or organs
involved in breathing, causing an important failure in their
function.
Once that sensitization has occurred even minute quantities of the
same substance can trigger the allergic symptoms.




