Because Americans don't know how to spell. The fact is that it's called 'Coeliac disease' by sane people and 'Celiac disease' by non-medical Americans. Medical

Because Americans don't know how to spell. The fact is that it's called 'Coeliac disease' by sane people and 'Celiac disease' by non-medical Americans. Medical Americans know how it's actually spelt, as do all non-Americans Attacks like this are unwarranted. Reviewing the references for the coeliac disease article shows plenty of "Medical Americans" and international papers referring to "celiac disease". - "Celiac Disease" https://www.niddk.nih.gov/health-information/digestive-diseases/celiac-disease https://www.niddk.nih.gov/health-information/digestive-disea... - "Subclinical celiac disease and gluten sensitivity" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017418/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4017418/ - Tonutti E, Bizzaro N (2014). "Diagnosis and classification of celiac disease and gluten sensitivity". Autoimmun Rev (Review) - Ciccocioppo R, Kruzliak P, Cangemi GC, Pohanka M, Betti E, Lauret E, Rodrigo L (Oct 22, 2015). "The Spectrum of Differences between Childhood and Adulthood Celiac Disease". Nutrients (Review). That's four from the first six references. Of the first 25 references for the Wikipedia article, 13 spell it "celiac", 8 spell it "coeliac", 1 spells it "cœliac", and 3 don't mention the disease specifically. To my eye (granted, quickly scanned), they all look like solid references, mostly journal articles. To me, especially given the dipthong œ used in one case, this looks like a clear case of a word that has legitimate spelling variants, just as you used "spelt", where others would spell it "spelled".