CD79A and celiac disease: In accordance with the recommendations of the ESPGHAN (European Society for Pediatric Gastroenterology, Hepatology and Nutrition), the diagnosis of celiac disease can be based on clinical and biological criteria only if all of the following criteria are met: suggestive symptoms, antitransglutaminase IgA levels more than 10 times higher than normal and positive for anti-endomysium IgA.