PAET VI 



CONTROL MEASURES 

 CHAPTER XXVI 



PREVENTIVE AND REMEDIAL MEASURES 



The significance of the house-fly as a cai'rier of the causative 

 organisms of certain of our most common diseases renders its 

 control fundamentally necessary in any effort towards sanitary 

 reform or in any system of preventive medicine. The disgust 

 Avhich its filthy habits call forth should be a sufficient impulse 

 in the direction of its control ; the fact that it can be no less 

 dangerous than the mosquito or the tse-tse fly, should opportunity 

 occur, should merit and demand the attention of all charged with 

 or interested in the care of the people's health. The evidence 

 which has been adduced is more than sufficient to demonstrate 

 that the prevention of many diseases cannot be undertaken with 

 any hope of success so long as this factor in their dissemination is 

 ignored. 



Prevention of Breeding. 



Of all control measures this is by far the most important. It 

 is the key of the whole situation. The fly and mosquito problems 

 are essentially similar. Malarial and yellow fever are eradicated 

 by the abolition and protection of the breeding places of the 

 mosquito. Similarly, by the abolition, and protection or treatment 

 of the breeding places of the house-fly its control could be effected 

 and its significance as a disease-carrier nullified. 



The study of the breeding habits of the house-fly has indicated 

 the places and materials in which it breeds. The chief breeding 



