MICRO-ORGANISMS IN VARIOUS DISEASES. 209 



that infants occasionally contract the dis- 

 ease by drinking milk from tuberculous 

 cows. 



(f) Disinfection: Boil infected material in closed 



vessel ten minutes or longer; well to burn 

 objects of no value. For sputum, formalin 

 15-20 per cent, tricresol 2 per cent, lysol 

 2 per cent are recommended; mix these 

 thorougly with sputum and let stand one 

 hour. Fumigate with sulphur or formal- 

 dehyde. 



(g) Prophylaxis: Chief danger is from carelessness 



of the consumptive in disposal of sputum; 

 if careful disinfection of expectoration 

 and all things soiled during the act of sneez- 

 ing, coughing, etc., is practised, he is no 

 menace to others. Those immediately 

 surrounding the consumptive most often 

 fall victims, a fact better established than 

 heredity in this disease. Neither milk 

 nor meat from tuberculous cattle should 

 be used. Consumptives should refrain 

 from kissing others ; nor should they marry. 



Typhoid Fever. 



(a) Cause: Bacillus typhosus; is non-sporogenous. 



(b) Localization: Primarily in intestinal tract or 



lungs; in blood; bladder; in complicatmg 

 suppurations. 



14 



