Filaria infections and elephantiasis have not been of especial concern to American physicians despite the widespread distribution of this condition throughout the world. Only at Charleston, S. C., the endemic focus of the United States, has the disease been an immediate problem. The global nature of the present war, however, has exposed our armed forces to diseases not commonly present in the United States, and recent reports1indicate that our armed services are exposed to filaris infection and that numbers are becoming infected. Since this infection may have an incubation period up to a year or more and since it may lie quiescent for years, not only military but civilian doctors as well may have to cope with it in this country in returning service men. Numerous drugs have been tried in the treatment of early filarial infections. Occasionally the treatment has resulted in a temporary decrease in the