What is Anaphylaxis?Anaphylaxis is a severe, life-threatening allergic reaction in two or more body systems, different from daily symptoms. It requires immediate response and medical attention. It requires immediate response and medical attention.Anaphylaxis and Mast Cell DiseaseIntro paragraph on relation, why this matters and should be aware of – data from references or TMS patient research on occurrence of anaphylaxis.Vimeo embed video on anaphylaxis Julie WangRelated InformationSymptoms and Triggers of Mast Cell ActivationEmergency Care for Patients with Mast Cell Diseases