Administering Influenza Vaccine to Egg Allergic Recipients

Introduction Renewed interest in the safety of administering egg-containing immunizations to egg allergic children and adults (EA) was prominent during the recent global pandemic of the H1N1 Influenza A virus in 2009-2010. The H1N1 Influenza A vaccine (H1N1), like the seasonal Trivalent Influenza Vaccine (TIV) is grown on embryonated chicken eggs, leading to concerns that residual contamination of ovalbumin could provoke allergic reactivity in EA. The 2010 influenza vaccine has incorporated the H1N1 strains, and thus a single TIV is being offered this season.