Typhoid Fever and its Relatives 101 



except in milk and when artificially cultivated 

 by the biologist for purposes of study. But 

 it may remain alive for several weeks outside 

 the body in milk, in water, in the soil, or 

 under other conditions. 



The typhoid germ in the large majority of 

 cases, enters the body with 

 food or drink by the intes- 

 tinal canal. When it gets 

 into the intestines, if the 

 conditions are favorable, it 

 multiplies, and enormous FIG - "-THE BA- 



i r ,1 CILLI OF TYPHOID 



numbers of the germs are FEVER 



thus sometimes produced. 

 Some of these often gain access to the blood 

 and to certain of the internal organs, as the 

 gall bladder and urinary bladder, but many of 

 them either complete their existence in the 

 intestinal canal, or are cast out in the living 

 condition with the diarrhoeal discharges which 

 so constantly accompany this disease and in 

 the urine. 



As the typhoid bacilli in this disease grow 

 and multiply in the bowels, or elsewhere, 

 they form a soluble poison toxin which is 



