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Vaccine. 1999 Jan 28;17(4):327-9.

Urticaria following varicella vaccine associated with gelatin allergy.

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Department of Pediatrics, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.


An uncommon reaction to varicella vaccine has been urticaria. Based on two reports of urticaria believed to be due to gelatin in recipients of measles-mumps-rubella vaccine, we suspected gelatin as the cause of generalized urticaria in two children after varicella vaccination. Intradermal testing with gelatin yielded a wheal and flare reaction in both children. We conclude that children known to be allergic to gelatin should not receive Oka/Merck varicella vaccine (VARIVAX).

[Indexed for MEDLINE]

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