ABSTRACT
Introduction: We present a case of quails egg allergy without allergy to chickens egg. Case: Girl of 10.5 years old who presents anaphylactic reaction after she ate an uncooked quails egg. She had eaten boiled quails egg before. She eats chickens eggs without clinical symptoms. Methods: We made a prick to chickens egg and prick-by-prick to uncooked quails and raw chickens egg. We determined specific IgE to chickens egg; electrophoresis and IgE by inmunoblot to eggs from chicken, duck, goose, and quail. Results: We obtained negative results to prick, prick-by-prick and specific IgE to chickens egg. Prick-by-prick to quails egg was positive. By immunoblotwe recognised a protein in quails eggwhite, which is ovotransferrin without any similar bands in other species eggs. Conclusions: The protein that we recognised is a specific protein of quails egg. These proteins did not cross-react with proteins of chickens egg. Cooking may degrade such proteins
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