Abstract
Background: The clinical manifestations of imported dengue in adult Western travelers were analyzed. Methods: The charts of all adult patients with dengue, who were seen in an academic hospital in The Netherlands from 1985 to 1994, were studied. Results: Dengue was confirmed in 34 patients by a fourfold rise in complement fixation antibody titer or presence of IgM. Twelve probable cases with a single high titer in the complement fixation test were found. Annual numbers have increased since 1989. Most cases were imported from Asia. Malaise (98%), fever (96%), headache (64%), chills (58%), muscle pain (53%) and arthralgia (44%) were the main symptoms. A noncharacteristic skin eruption was seen in 84%. Leukocytopenia and thrombocytopenia were found in 87% and 75%, respectively during the first week, and elevated serum aminotransferase activities were noted in 75%. Only two patients developed dengue hemorrhagic fever. Conclusions: Dengue in Western travelers is usually a relatively mild disease. Leukocytopenia, thrombocytopenia, and elevation of serum aminotransferase activities are common laboratory features.
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