Berrens L, van Dijk A G, Weemaes C M
Clin Allergy. 1981 Mar;11(2):101-9. doi: 10.1111/j.1365-2222.1981.tb01573.x.
A case of eggwhite allergy and a case of fish allergy, where complement-fixation by thermostable IgG-class antibody was positive at extremely high antigen dilutions are described. The antibody in eggwhite allergy was of the precipitating variety and the C-fixation phenomenon was not related to the presence or absence of IgE antibody.