anaphylaxis
noun
ana·phy·lax·is
| \ -ˈlak-səs
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plural anaphylaxes\ -ˌsēz
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Definition of anaphylaxis
1
: hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent
Examples of anaphylaxis in a Sentence
Recent Examples on the Web
More than 40% of children with food allergies have experienced a severe reaction such as anaphylaxis, the group said. — Bloomberg News, oregonlive, "What’s behind the persistent shortage of lifesaving EpiPens?," 23 Aug. 2019 There have been rare cases of allergic reaction, or anaphylaxis, related to the HPV shot, according to the CDC. — Anna Almendrala, NBC News, "When parents say 'no' to HPV shots, teens have no choice. Some states are changing that.," 18 Aug. 2019 That's a sign the person was experiencing anaphylaxis, a life-threatening allergic reaction. — NBC News, "More than 1.5 million Americans could have a sesame allergy," 2 Aug. 2019 Not unlike the symptoms of a peanut, egg, tree nut or a shellfish allergy, many people who are allergic to red meat may experience hives, a skin rash or anaphylaxis. — Fox News, "Lone Star tick, known to cause red meat allergy, found in northern Wisconsin: report," 30 June 2019 Epi pens Students with severe allergies at risk of anaphylaxis can now possess and use a single-dose auto-injectable container of epinephrine while at school. — al.com, "Here are the changes Alabama lawmakers made to schools this year," 22 June 2019 Research published in 2015 in the Journal of Allergy and Clinical Immunology found that of 25.2 million vaccines given between 2009 and 2011, just 33 people suffered from anaphylaxis, which is a potentially life-threatening allergic reaction. — Laura Hancock, cleveland.com, "New Ohio bill takes shot at employers who want workers vaccinated," 3 June 2019 Epinephrine previously had to be administered by a school nurse, and if a student is suffering with anaphylaxis, every second counts. — al.com, "Here are the changes Alabama lawmakers made to schools this year," 22 June 2019 Other possible side effects include anaphylaxis, kidney failure or heart failure, depending on the medication used. — The Washington Post, The Denver Post, "Alabama governor signs “chemical castration” bill for some sex offenders," 11 June 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anaphylaxis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for anaphylaxis
anaphylaxis
noun
ana·phy·lax·is
| \ ˌan-ə-fə-ˈlak-səs
\
\
plural anaphylaxes\ -ˌsēz
\
\
Medical Definition of anaphylaxis
1
: hypersensitivity (as to foreign proteins or drugs) resulting from sensitization following prior contact with the causative agent