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Repeated injections of a monoclonal anti-IgE antibody markedly decreased the sensitivity of peanut-allergic patients to subsequent peanut exposure. Since fatal anaphylaxis to peanuts can occur following inadvertent ingestion of small amounts of peanut antigen, this treatment might be very useful for peanut-allergic travelers who will be exposed to foods of uncertain purity.

Peanuts, Allergy, and Travel