THE HOUSE FLY 33 



the neighbourhood. The remedy is to protect infected 

 material from flies, to thoroughly disinfect it, and to wage 

 unceasing war on the flies. When a case of typhoid is 

 known, all those in the neighbourhood should regard the 

 House Fly as a likely means of infection, and should take 

 energetic measures to eliminate it from the dwelling, and 

 to protect all foodstuffs from contamination by it. 



