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Recommendations for the administration of influenza vaccine in children allergic to egg

2009; BMJ; Volume: 339; Issue: sep15 3 Linguagem: Inglês

10.1136/bmj.b3680

0959-8138

Michel Erlewyn‐Lajeunesse, N. Brathwaite, Jane S. Lucas, John O. Warner,

Allergic Rhinitis and Sensitization

#### Summary points Egg allergy affects about 2.6% of preschool children by 3 years of age, and influenza immunisation using egg based vaccines has been classified as a “relative contraindication” (prescribe with extra caution) in this patient group.1 Until now the numbers of children with egg allergy requiring immunisation has been low, but this may change with the potential for a mass immunisation campaign. This article reviews the literature on the safety of flu vaccines and provides guidelines for the administration of these vaccines to children with egg allergy. Although egg-free flu vaccines are expected to be available for this season, the provision of sufficient amounts of this vaccine cannot be guaranteed at the time of writing, and a pragmatic strategy for the safe immunisation of children with egg allergy is required. We identified articles using PubMed and the search terms “influenza” and “egg allergy”. We identified further references within relevant papers. We found two randomised clinical trials, but most evidence comes from small case series. This season two varieties of flu vaccine will be available: a pandemic A/H1N1 strain and the normal trivalent seasonal flu vaccine that will contain an A/H1N1 virus but will not protect against the pandemic …