单词	anaphylaxis
释义	anaphylaxis noun ana·​phy·​lax·​is ˌa-nə-fə-ˈlak-səs  plural anaphylaxes ˌa-nə-fə-ˈlak-ˌsēz  1 : hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent 2 : anaphylactic shock Example Sentences Recent Examples on the Web After taking just two doses, my face swelled and my throat tightened in anaphylaxis. Natalie Ma, STAT, 31 Oct. 2021 People can experience cardiovascular issues, gastrointestinal problems, renal failure, and anaphylaxis. Chris Smith, BGR, 21 June 2022 Then in 2009, a group of allergy specialists at the University of Virginia noticed that some of their patients developed symptoms ranging from hives to anaphylaxis when they were exposed to alpha gal in mammalian meat. New York Times, 9 May 2022 Rare events like myocarditis or anaphylaxis — severe allergic reactions to the shots that have been seen in a small number of adults — were probably too uncommon to be spotted in the clinical trials. Alexander Tin, CBS News, 27 Oct. 2021 That does not mean that anyone with a history of any kind of allergies or anaphylaxis is medically unable to get a Covid vaccine. NBC News, 2 Sep. 2021 Moreover, anaphylaxis can lead to dizziness, lightheadedness, and loss of consciousness. Chris Smith, BGR, 14 May 2022 Signs of anaphylaxis typically occur within minutes of exposure but in some cases pop up hours later, per the Mayo Clinic. Lauren Krouse, SELF, 1 June 2022 Mast cell activation syndrome can cause an immediate allergic reaction including anaphylaxis, according to the American Academy of Allergy, Asthma & Immunology. Lisa Respers France, CNN, 11 May 2022 See More Word History Etymology New Latin, from ana- + prophylaxis First Known Use circa 1905, in the meaning defined at sense 1 Medical Definition anaphylaxis noun ana·​phy·​lax·​is ˌan-ə-fə-ˈlak-səs  plural anaphylaxes -ˌsēz  1 : hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent 2 : anaphylactic shock
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