alpha-gal syndrome

noun

al·​pha-gal syndrome -ˈgal- 

: an acquired allergy to meat (such as beef or pork), meat products (such as gelatin), and dairy that manifests as hives, swelling, shortness of breath, or digestive issues and may sometimes lead to anaphylactic shock, that has a delayed onset of symptoms several hours after exposure to allergens, and that develops after a bite from a tick and especially the lone star tick

Alpha-gal syndrome stands apart from conventional, IgE-mediated food allergies because the IgE driving the allergy forms against a sugar … rather than a protein.

—Jessica D. Macdougall et al., ImmunoTargets and Therapy

Certain medications, such as a blood thinner (heparin), … as well as mammal-based organ replacements (such as heart valves) can cause allergic reactions in patients with alpha-gal syndrome and should be avoided.

—Fatema Mollah et al., The Journal of the American Medical Association

—abbreviation AGS

called also red meat allergy