A case of dengue fever presenting with acute urticaria

Abstract

BACKGROUND: Acute urticaria (AU) is characterized by the occurrence of spontaneous wheals, angioedema, or both for less than 6 weeks. Viral infection is considered to be one of the common causes of AU, however AU has never been reported in association with dengue infection. OBJECTIVE: To describe the first case of AU in dengue virus infection. METHODS: Case report. RESULTS: A 17-year-old healthy male presented with first episode of AU which associated with confirmed dengue virus infection. He responded well with antihistamine treatment and without recurrence at 2-month follow up. CONCLUSIONS: Patients with dengue virus infections can present with AU, possibly from viral-infected mast cell. Future research will have to clarify this association.