330 PERSONAL AND CIVIC HYGIENE 



Second : careless people are scattering gerrns about, so that 

 they finally reach the bodies of the well. 



2. It would therefore seem wise that, if we wish to prevent 

 these germs from entering our bodies, we must 



First : immediately destroy the germs that may be in the 

 excreta of the sick ; 



Second : prevent disease germs that are being scattered 

 about carelessly from entering the body, as well as reduce the 

 scattering as much as possible ; and also, 



Third : develop in the body a power to fight these germs 

 (immunity) if they should happen to enter the body. 



a. Destroy Germs from the Sick 

 1. DISINFECTION OF SPUTUM AND EXCRETA 



1. How have you learned germs may leave the bodies of the 

 sick ? (See section I.) 



2. How have you learned such germs may be killed ? (See 

 Prob. XXIII, c). What have you learned concerning the 

 value of heat, sunlight, drying, and certain chemicals such 

 as corrosive sublimate, carbolic acid, lysol, and formalin? 

 Chloride of lime, milk of lime, and cresol are also very good. 



Note. Any germ killers, such as those just named, are 

 known as disinfectants. 



The wastes from the bodies of the sick may be received in 

 receptacles, and disinfected by adding an equal bulk of 5 % 

 formalin, lysol, or corrosive sublimate. Let the waste matter 

 stand several hours before disposing of it. Why ? 



3. If germs are from the nose or mouth, the sputum or 

 mucus containing them should be received in small pasteboard 

 cups, or a handkerchief. These should all be burned as soon 

 as practicable. Carbolic acid or lysol may be added in case it 

 is not convenient to burn them. Under no circumstances per- 

 mit sputum from those diseased to dry. Why not ? 



