The egg allergy often knows a good evolution

Written by Sandeep Nehra

The egg allergy, a common food allergies in children, has often a good spontaneous evolution and does not prevent those who continue to suffer to receive vaccines grown on egg, according to allergists gathered Paris.

If one believes the parents, there would be in France up to 7% of allergic to egg, said Dr. Avigael Benhamou, a pediatrician and allergist at the University Hospitals of Geneva, speaking before the 6th congress of Allergy, which ends on Friday.

In reality, there is confusion between sensitivity and allergy, and allergy were 1.7% after verification by oral provocation tests, where the child ingests the egg in small quantities to trigger symptoms.

With egg allergies usually manifest as hives, skin problems, swelling, vomiting and abdominal pain, and at worst an anaphylactic shock (a fall in blood pressure, rapid heart rate) can be extremely serious.

Some children are allergic to egg only believed, others to the egg in all its forms, “said Dr. Benhamou. The egg white is the main source of allergens such as ovomucoid, heat resistant, and ovalbumin.

“In general, she said, the prognosis is favorable,” but we must be patient. According to a recent study of 881 people, healing occurs spontaneously in 4% of patients at the age of 4 years, 12% at 6 years, 37% to 10% and 68 to 16 years.

The others were sentenced recently to a strict foreclosure of the egg, until recovery, which was difficult to hold. Today is induced a dose of progressive egg will “facilitate the acquisition of tolerance in most patients,” said Dr. Delphine de Boissieu, a pediatrician and allergist at the Necker Hospital.

The protocols are manifold. For some, “the first dose was prepared with ten drops of beaten egg, diluted in 100 ml of water,” and the patient received a drop of the preparation with increasing doses every three days. “We came to the whole egg after 4 to 8 months,” said Dr. de Boissieu.

Others gradually ingest the egg powder, and after one year can eat a half-egg. But allergy recurrence if we do not eat regularly. Still others have argued over protocol, but in the hospital.

Following these inductions, although children are not cured, they are “away from the accident” and “gain in quality of life,” notes Dr. de Boissieu.

Finally, no vaccine, although it is grown on egg-cons is indicated for people with allergies, said Dr. Stephen Bidat, a pediatrician at the Hospital Ambroise Pare, Boulogne (Hauts-de-Seine ).

At the outbreak of H1N1 last year, it had been recommended for people with allergies to egg to be vaccinated in the hospital and with specific vaccines grown on egg but not split Cell.

“From the delirium,” said Dr. Bidat, which emphasizes that vaccines “contain trace amounts of egg or does not contain”. He noted that there are anaphylactic symptoms for all vaccines, “whether they contain traces of egg protein.

To him we can vaccinate everybody “in peace” possibly “two or three times” for the vaccine against yellow fever, which contains more albumin than others.

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