The authors report a case of hemorrhagic dengue fever in France, a rem
inder that travellers to tropical areas are at major risk for this dis
ease. The 4 dengue viruses have spread to nearly all tropical countrie
s. Clinical manifestations range from asymptomatic to fatal forms. Amo
ng these, hemorrhagic dengue fever and dengue shock syndrome require e
mergency treatment. Physicians should keep in mind that dengue is to b
e considered as a diagnosis for acutely pyretic patients having travel
lers to tropical countries.