

THE CONTROL OF HEALTH 397 



The incubation period is unknown. Protective measures 

 are: 



1. Isolation. 



2. Extreme care to disinfect and destroy all materials 

 expelled from the mouth and nose; these should be collected 

 in gauze cloths and burned. 



Typhoid Fever. This disease is known to spread in no 

 way except through the swallowing of bacteria from the 

 excreta of a previous case. Sickness sets in from eight to 

 fourteen days after infection. 



Epidemics are prevented, or if under way, may be controlled 

 in these ways : 



1. Rigid examination of all foods and drinks, to insure 

 purity and sterility. 



2. Prohibition of sale of food and drink by peddlers. 



3. Prevention of transmission by flies, by screening houses 

 and destroying breeding places of flies. 



4. "Carriers" should be identified, isolated, and "cured." 



5. Careful sterilization of all dishes used by patient. 



6. Insistence upon general use of typhoid serum. 



Mumps. The cause of this disease is unknown. Its 

 manner of spreading is by the saliva which is often on fingers 

 which have been purposely or thoughtlessly put into the 

 mouth. Anything they touch is then infected, and passes 

 on germs to any other person who may touch it. 



The incubation period is from one to three weeks. 



Epidemics of mumps are partially avoided at least by: 



1. Isolating patients. 



2. Guarding against infection of anything with saliva. 



3. Avoiding infection droplets from a patient. 



Scarlet Fever. This disease is not as epidemic as many 

 others and concerns chiefly young people. The cause is 

 unknown; the incubation period is from one to seven days. 



