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THE NATIONAL GEOGRAPHIC MAGAZINE 



Photograph by Alexander Stewart 



A DENTIST AT WORK IN SHANTUNG PROVINCE, CHINA 



No contribution that Western civilization can make to China can surpass that which it is 

 making in establishing a medical school where health leaders can be trained. 



sources of infection there, that he died in 

 London, at a time when he might almost 

 have realized his life's dream of "writing 

 the last chapter of the history of yellow 

 fever." 



After Major Walter Reed and his fel- 

 low-workers in Cuba had demonstrated 

 that yellow fever is a mosquito-borne dis- 

 ease, General Wood and Colonel Gorgas, 

 by following the principles laid down by 

 Reed, banished it from Cuba ; Colonel 

 Gorgas drove it out of Panama ; Doctor 

 Oswaldo Cruz eliminated it from Rio de 

 Janeiro, and Doctor Liceaga exterminated 

 it in Vera Cruz. 



But there still remained a few places 

 that served as seed-beds of the disease, 



against which the world had to quaran- 

 tine constantly. One of these was Guaya- 

 quil, Ecuador, and there were others in 

 Yucatan, Guatemala, and elsewhere. 



Each time a person left one of these 

 communities there was a "fifty-fifty" 

 chance that he carried the possibilities of 

 a big epidemic in his blood. 



GUAYAQUIL THROWS OFP ITS CHAINS 



Yet there was no way for the outside 

 world to step in and throttle the disease 

 in its endemic haunts unless invited by 

 the governments in whose territories they 

 existed. 



Finally Guayaquil, awake to the new 

 spirit of international cooperation for 



