From the root Greek words 'against' and 'protection', what medical term refers to a serious human allergic reaction?
Anaphylactoid reaction Antaphylatic shock Anaphylactic Anaphelactic shock Anaphalaxis Anaphylactic shock Anaphalactic shock Idiopathic anaphylaxis Anaphylactic hypersensivity Passive transfer anaphylaxis Anaphlaxis Anaphylactic reaction Exercise-induced anaphylaxis Anaphylactoid reactions Anaphylaxic shock Exercise induced anaphylaxis Pseudo-anaphylaxis Passive transfer Pseudoanaphylaxis Anaphylactic reactions Anaphylaxis Annafeltic shock Anaphylatic Shock