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Flu vaccine and egg allergy

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Atopic children with asthma are at increased risk from influenza, but are also more likely to be egg allergic. Egg allergy reportedly affects up to 2% of all under-5s. It's important, therefore, to remove obstacles to getting them immunised. All ‘flu vaccines licensed for children are manufactured using hen's eggs, and until now live attenuated influenza vaccine (LAIV; ‘Fluenz’) – an intranasal vaccine which families understandably find more acceptable than injections – was contraindicated in egg allergy. …

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  • Competing interests None.

  • Provenance and peer review Commissioned; internally peer reviewed.