In the spring of 1915 there began to appear in the British army in France a large number of cases of an acute infection resembling influenza. More careful investigation, however, soon showed that the disease was not influenza, but a new clinical entity. Since the early cases arose chiefly among the soldiers at the front line, the name "trench fever" soon came to be used.
The disease was described first by Graham1 in September, 1915, while the designation "trench fever" was used first by Hunt and Rankin,2 who gave an excellent clinical description of the disease.
Briefly, trench fever is characterized by the sudden onset of fever, with dizziness, headache, backache, and pains in the legs, which later become localized in the shins. The temperature curve is often characteristic, showing an intermission on the third or fourth day, followed after an interval of a day or two by