Can patients who are allergic to eggs receive the 2009 H1N1 flu vaccine?


Asking persons if they can eat eggs without adverse effects is a reasonable way to determine who might be at risk for allergic reactions from receiving influenza vaccines. Persons who have had symptoms such as hives or swelling of the lips or tongue, or who have experienced acute respiratory distress after eating eggs, should consult a physician for appropriate evaluation to help determine if influenza vaccine should be administered. Persons who have documented (IgE)-mediated hypersensitivity to eggs, including those who have hadoccupational asthma related to egg exposure or other allergic responses to egg protein, also might be at increased risk for allergic reactions to influenza vaccine, and consultation with a physician before vaccination should be considered. A regimen has been developed for administering influenza vaccine to asthmatic children with severe disease and egg hypersensitivity (J Pediatr 1985;106:931-3.).


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