The current state of the doctrine of the etiology of typhus

In connection with the modern European war, and also in view of the well-known fact of the extraordinary development of typhus epidemics in wartime, both in the ranks of active armies and among prisoners of war, in recent years among doctors there has been a significant increase in interest in the etiology of typhus. This interest, in addition, was largely fueled by those reports in the special literature that were made by a number of authors, and in particular Nicoll and his students, who published the results of their work and observations during the typhus epidemic in Tunisia.