We report one laboratory-confirmed coinfection by dengue type 4 and Plasmodium falciparum imported to Spain from Haiti. Diagnosis was made by real-time polymerase chain reaction (RT-PCR), serology, quantitative buffy coat, and thick blood smear. In areas where both infections are present, diagnosis of both diseases should be considered because a delay in the treatment of malaria could be fatal.
© 2015 International Society of Travel Medicine.