| Image = | Caption = | DiseasesDB = 29153 | ICD10 = | ICD9 = | ICDO = | OMIM = | MedlinePlus = | eMedicineSubj = med | eMedicineTopic = 128 | MeshID = D000707 | }}Anaphylaxis is an acute systemic (multi-system) and severe Type I Hypersensitivity allergic reaction in humans and other mammals. The term comes from the Greek words ??? ana (against) and ??????? phylaxis (protection)."Anaphylaxis." Etymology. Oxford English Dictionary. http://dictionary.oed.com. Anaphylaxis occurs when a person or animal is exposed to a trigger substance, called an allergen, to which they have already become sensitized. Minute amounts of allergens may cause a life-threatening anaphylactic reaction. Anaphylaxis may occur after ingestion, skin contact, injection of an allergen or, in rare cases, inhalation. Anaphylactic shock

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # TAGS