RELAPSING FEVER 



107 



shows such an association of the two diseases in 

 the recent Roumanian epidemic. The relapsing 

 fever commenced rather before the typhus, and 



CHART IV. CURVKS OF THE INCIDENCE OF TYPHUS AND RELAPSING 

 FEVER IN THE SECOND ROUMANIAN ARMY, SHOWING THE ASSOCIA- 

 TION BETWEEN TWO LOUSE-BORNE DISEASES. (After Wells and 

 Perkins.) 



its spread was more rapid, so that it reached its 

 maximum in April and was declining quickly in 

 the following month when the typhus epidemic 

 reached its climax. 



