Dengue occurs in tropical and sub-tropical regions of the world. Approximately 150 cases each year are reported in the UK associated with travel to endemic areas. Anyone who suspects they have dengue infection should see their GP and remember to tell him/her about any recent travel.

Health professionals should be alert to the possibility of dengue in those who have recently returned from an endemic area presenting with a flu-like illness, and send the appropriate samples (with a full clinical and travel history) to the HPA Special Pathogens Reference Unit.