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Year : 2013  |  Volume : 27  |  Issue : 2  |  Page : 108-114

Food allergy in bronchial asthma: Diagnostic modalities

Department of Respiratory Allergy and Applied Immunology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India

Correspondence Address:
Raj Kumar
Department of Respiratory Allergy and Applied Immunology, National Centre of Respiratory Allergy, Asthma and Immunology (NCRAAI), Vallabhbhai Patel Chest Institute, University of Delhi, Delhi - 110 007
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-6691.124392

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Food hypersensitivity is estimated to be approximately 2% in adults and 8% in children. The incidence of perceived adult food hypersensitivity varies (1.4-30%) largely across the different countries. Allergen sensitization in different countries may be the result of interchange of genetic factors, cultural and dietary habits and or exposure to new allergenic products early in life. The diagnosis of food allergy is difficult due to lack of definitive laboratory test. The clinical observation is very important. The diagnosis and confirmation of adverse reaction to specific food should initially involve obtaining a good history of symptoms that may indicated the presence of food related adverse reaction. The diagnosis is confirmed by double blind placebo controlled food challenge test, which is difficult and may have sever reaction. Hence this test should be done in the hospital set up where the facilities to treat the allergic reactions are present.

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