132 MODE OF TRANSMISSION OF YELLOW FEVER 



done, this tlieory slioiild be wliat Reed and his 

 companions chiinied for it." ' 



In tlie same year the I^iverpool Scliool of 

 Tropical JNIedicine dispatched Drs. Walter Myers 

 and Durham to study the disease at Para ; France 

 followed immediately (late in 1901) with an ex- 

 pedition composed of Drs. JNlarchoux, Salimbini, 

 and Simond, which made Rio its headquarters. In 

 1903 a yellow fever working party composed of 

 Rosenau, Reyer, Parker, Pothier, and Francis was 

 sent by the I'ublic Health and Marine Hospital 

 Ser\'ice to study the transmission of yellow fever at 

 Vera Cruz. Lastly, in 1905 the Liverpool School 

 of Tropical Medicine established for a second time a 

 Yellow Fever Laboratory at Para under the direction 

 of Dr. Thomas, assisted by Dr. Breinl. The conclusions 

 arrived at by these commissions, as well as by Dr. 

 Guiteras in LLivana and Drs. Lutz, Ribas, Barreto 

 de Rarros, and Rodriques in Brazil, have all fully 

 confirmed the original observations of Reed, ^Vgramonte, 

 Carroll, and Lazear, and have proved that the Sfcgo//i//ia 

 cdlopus is the sole transmitter of the disease. The 

 enthusiasm and devotion of this army of workers are 

 shown by the fact that a \'ery large number of the 

 workers suffered themsehes from the disease, and 

 tliat \^'alter Myers ajul I^azear succumbed. Reed, 

 one of the most brilliant of tliis group, unfortunately 

 died at AVashington from appendicitis in 1902, hardly 

 before he had had time to witness the beneficial results 



' For tills extract 1 ;iin iiidelitcil to Dr. II. A. Kell) ^> niu^l interesting 

 work entitled " \Valter Reed and Yellow Fever," New York, 1907. 



