[Fever, headache, diarrhea].

A 26-year-old man suddenly developed fever, headache, pain in the lower extremities, diarrhoea, and lymphadenopathy on the way back from Thailand. Subsequently, leukopenia, thrombocytopenia, coagulation abnormality and a morbilliform exanthema were noted. With symptomatic treatment the patient could be dismissed in good health after nine days. The diagnosis of Dengue and Campylobacter jejuni/coli infection could be verified serologically by a rising antibody titer and by a positive stool culture respectively.