title: Fifty-six-year-old man with anaphylaxis: A novel delayed food hypersensitivity reaction.
abstract: Anaphylaxis and urticaria are commonly seen in both primary care and allergy clinics. Foods, drugs, and insects are frequent culprits for immediate reactions; however, the trigger for recurring and/or chronic episodes is often unclear. We present a 56-year-old male with recurrent symptoms of urticaria, angioedema, and anaphylaxis found to be triggered by sensitization to galactose-alpha 1, 3-galactose (alpha-gal), a novel food allergen.
authors.forename: Kendall D
authors.initials: KD
authors.lastname: Wagner
authors.forename: Matthew C
authors.initials: MC
authors.lastname: Bell
authors.forename: Robert D
authors.initials: RD
authors.lastname: Pesek
authors.forename: Joshua L
authors.initials: JL
authors.lastname: Kennedy
mesh_terms: D000707:Anaphylaxis / Q000150:complications / Q000175:diagnosis* / Q000276:immunology*; D000818:Animals; D004187:Disaccharides / Q000276:immunology*; D006801:Humans; D007073:Immunoglobulin E / Q000097:blood; D008297:Male; D008460:Meat / Q000009:adverse effects*; D008875:Middle Aged; D013552:Swine; D064927:Tick Bites / Q000150:complications / Q000276:immunology; D014581:Urticaria / Q000209:etiology*
chemical_list: D004187:Disaccharides; C055075:galactosyl-(1-3)galactose; D007073:Immunoglobulin E