204 THE MILK SITUATION IN THE DISTRICT OF COLUMBIA. 



Much. (Heal tli officer Providence, R. I.) 



To the fullest extent if properly done. But while it would lessen these 

 infections we have no right to look at the question simply from that standpoint. 

 Pasteurization may do great harm in other directions. (Health officer Rich- 

 mond, Va. ) 



I don't know what is meant by pasteurization. As practiced here it is only 

 used to preserve dirty milk. (Health officer Rochester, N. Y.) 



If it were possible to properly pasteurize all milk all danger of infection 

 from tuberculosis would cease so far as the bovine form is concerned. (Health 

 officer Seattle, Wash.) 



If properly used it ought to be successful. (Health officer Syracuse, N. Y.) 



Greatly, if pasteurization properly conducted. (Health officer Topeka, Kans.) 



By proper pasteurization it could be practically eliminated if put at once in 

 sealed sterile containers. (Straus Laboratory, Washington, D. C.) 



None, but to the contrary would be increased. (Sharon Dairy, District of 

 Columbia.) 



This is purely problematical and depends entirely on how thorough the 

 pasteurizing is done. As pasteurization would have to be most thorough in 

 order to affect it in any way, this would again bring up the question as to the 

 relative values between a good, clean, raw milk and a milk which had been 

 heated, particularly when this was kept up as a steady diet covering a period 

 of time. (Borden's Condensed Milk. Co., New York, N. Y.) 



Any reply to these not based on statistics covering a long period would be of 

 little value. (Walker-Gordon Laboratory, Washington, D. C.) 



Can not say. (Dr. V. C. Vaughan, Ann Arbor, Mich.) 



If real pasteurization, somewhat ; if commercial pasteurization, hardly at all. 

 (Dr. S. C. Prescott, Boston, Mass.) 



Would be eliminated. (Health officer Los Angeles, Cal.) 



Properly pasteurized milk would decrease the infection, and it is more 

 practical at present than tuberculin-tested milk unless the testing is kept up 

 periodically. (J. M. Houston, White Cross Milk Co., Washington, D. C.) 



With tuberculosis to a considerable extent. (Health officer San Francisco, 

 Cal.) 



This would depend upon the methods required. If the pasteurizing be done 

 by individual dairies or depots and not under the direct supervision of the 

 authorities, very uncertain results would be obtained. (Health officer St. 

 Joseph, Mo.) 



Very slightly. (Health officer Wheeling, W. Va.) 



The notoriously uncertain results of commercial pasteurization render an 

 answer to this question impossible. (Dr. Samuel McC. Hamill, Philadel- 

 phia, Pa.) , 



Very slight. (Health officer Scraiiton, Pa.) 



QUESTION 4. To what extent is this infection influenced fry the prescribed con- 

 ditions of cleanliness on a farm and in the handling and the distribution of 

 milkf 



ANSWERS. 



While cleanliness will greatly reduce the danger of infection with such dis- 

 eases, it will not entirely remove such danger, as the germs of disease might 

 be conveyed by cleanly persons, especially by persons termed " bacillus car- 

 riers " or "walking cases" of disease. (Chief Bureau of Animal Industry.) . 



If the prescribed conditions are accurately enforced, the spread of tubercu- 

 losis in cattle is somewhat, and the transfer of the human infections to the 

 milk is much, diminished. ( Surgeon General U. S. Army. ) 



The prescribed conditions of cleanliness, while minimizing the infection, would 

 not entirely prevent it. ( Surgeon General U. S. Navy. ) 



Cleanliness in production and handling of milk will reduce the danger of in- 

 fectious diseases, but the milk must be handled by healthy persons and come 

 from noninfected cows. (Surgeon General Public Health and Marine-Hos- 

 pital Service.) 



Considerably lessened. (Dr. William H. Park, New York, N. Y.) 



Infection is entirely obviated, providing the tuberculin test is reliable. Other 

 infectious diseases are impossible through milk with proper medical supervision 

 of the dairy hygiene, as seen in the production of certified milk by a medical 

 commission. (Dr. Henry L. Coit, Newark, N. J.) 



