2IO INFECTIOUS AND PARASITIC DISEASES. 



(c) Entry: By mouth, through water principally; 



less often in ice, milk, and other foods; in 

 some localities oysters are especially dan- 

 gerous when eaten raw. 



(d) Exit: Discharges from bowels; urine; sputum; 



suppurative complications; skin; in rose- 

 spots; sometimes in vomit. 



(e) Contracted: The specific bacillus must get into 



the mouth and be swallowed; great care 

 must be exercised by those in attendance 

 upon typhoid fever patients not to contam- 

 inate their foods, or the foods of others. 



(f) Disinfection: The bacillus is killed immediately 



by boiling water or steam; disinfect the 

 sputum, the stools, discharges from the 

 bowels, urine, linens, eating-utensils, etc., 

 by boiling, or by 5 per cent carbolic acid, 

 5 per cent formalin, 2 per cent tricresol, 

 and let stand one hour; bichloride of mer- 

 cury (i-iooo) may be used to disinfect the 

 urine. When convalescence established, 

 wash out bladder once daily for several 

 days with bichloride of mercury (1-20,- 

 000), or give urotropin 30 to 60 gr. 

 daily for the same length of time; all dis- 

 charges should be received in vessels con- 

 taining a small quantity of one of the dis- 

 infecting solutions, after which the balance 



