Egg allergy in childhood: an update

Area of Science:

• Pediatric Allergy and Immunology
• Clinical Immunology
• Food Allergy Research

Background:

• Hen's egg allergy is a prevalent food allergy in infants and children.
• Management includes dietary avoidance, anaphylaxis precautions, and monitoring for tolerance.
• Understanding the immunology, clinical course, and natural history is crucial.

Purpose of the Study:

• To review recent literature on hen's egg allergy.
• To cover immunology, clinical presentation, diagnosis, management, and natural history.
• To provide an update on current research and clinical practices.

Main Methods:

• Literature review of recent studies on egg allergy.
• Analysis of immunological aspects.
• Evaluation of clinical presentations and diagnostic approaches.

Main Results:

• Most egg-allergic children achieve tolerance spontaneously.
• Ingestion of small amounts of cooked egg may accelerate tolerance.
• Influenza vaccination in egg-allergic individuals remains controversial; not recommended for those with prior anaphylaxis.
• Oral immunotherapy shows promise but is not yet standard practice due to safety and efficacy concerns.

Conclusions:

• Egg allergy generally has a favorable prognosis.
• Dietary avoidance remains the primary management strategy until tolerance develops.
• The role of low-dose egg exposure in cooked foods on the natural history is still under investigation.