Allergy to egg is highly frequent in childhood. In general, @entity1 allergic to egg react principally to the ingestion of egg white. Egg yolk contains various proteins but the major allergens are contained in egg white. The principal allergens are ovalbumin, ovomucoid, ovotransferrin, and lysozyme. These proteins have been sequenced. In some cases, a relationship between @entity56 with @entity1576 due to bird antigens and @entity566 to egg yolk has been described. This association is known as @entity17523 , which is caused by sensitization to chicken serum albumin (alpha -livetin) and is characterized by the development of respiratory and @entity344 after egg intake or after contact with bird antigens. The initial symptoms are usually asthma with or without @entity7370 due to contact with birds. Individuals first become sensitized to bird proteins (feathers, excrement, serum and meat) and subsequently develop egg @entity566 . Although @entity17523 has been described principally in adults, especially in @entity1 , it can also affect @entity1 in whom the syndrome presents certain differentiating characteristics in relation to the more common sensitization to egg white. Gastrointestinal and @entity1576 are more common than cutaneous symptoms and sensitization to egg yolk is more frequent than that to egg white. In @entity1 with @entity566 to birds and egg, egg @entity566 is usually more persistent; tolerance is not always achieved and develops later. Sensitization to other aeroallergens is also greater in individuals with @entity566 to birds and egg. Sensitization to egg sometimes precedes respiratory sensitization to bird proteins, a process known as @entity17523 . By way of example, the case of a @entity1 who clinically presented @entity17523 is presented at the end of this review.

[Bird-egg syndrome in XXXX ].

@entity1 :: ('9606', 'Species') :: ['women', 'children', 'child'] @entity7370 :: ('OMIM:613207', 'Disease') :: ['rhinoconjunctivitis'] @entity566 :: ('MESH:D006967', 'Disease') :: ['allergy'] @entity17523 :: ('MESH:D001715', 'Disease') :: ['bird-egg syndrome'] @entity344 :: ('MESH:D005767', 'Disease') :: ['gastrointestinal symptoms'] @entity56 :: ('MESH:D004342', 'Disease') :: ['type I hypersensitivity'] @entity1576 :: ('MESH:D012131', 'Disease') :: ['respiratory symptoms']
@entity1 :: (9606,Species) :: ['children']
