The Transmissibility of Bovine Tuherculosis to Man. 20i) 
source, but in the other nine the lesions contained bovine 
bacilli only,. 
All these nine German cases occurred in children, and in 
eight of them the primary seat of disease was in connection 
with the glands attached to the intestine or those in the neck. 
The total number of cases investigated in children under twelve 
years of age in which infection appeared to have taken place 
through the intestine was twelve, and in six of these the only 
bacilli present were bovine bacilli. 
In the English cases twenty-eight appeared to have been 
infected by way of the alimentary canal, and in thirteen of 
these the bacilli were of the bovine type. 
As previously remarked, it was to be expected that, since 
they followed :the same methods of investigation, the English 
and German Comuiissions would obtain substantially the 
same experimental results ; but there was, of course, no such 
certainty that they would draw the same conclusions from 
these results. As a matter of fact, however, the conclusions are 
very similar. 
What are called the practical results of the German investi- 
gations, BO far as these relate to the infection of human beings 
from cattle, are stated as follows : — 
“ 1 . The fact that tubercle bacilli of the bovine type have been detected in 
tuberculous lesions of human beings shows that the human body is capable of 
becoming infected with the discharges (milk for example) or the tuberculous 
flesh of the domesticated animals, when such materials contain tubercle 
bacilli.” 
“ 2. The alterations in the tissue of human beings which are caused by 
tubercle bacilli of the bovine type are in a notable number of cases limited to 
the place at which the germs entered and the neighbouring lymphatic glands, 
or to the latter alone. Nevertheless tubercle bacilli of the bovine type have 
also been found in cases of tuberculosis in which the disease had spread to 
remote parts of the body, and had actually caused the death of the patient.” 
“ 3. Accordingly, the use by human beings, and especially by children, of 
articles of diet derived from tuberculous animals and containing tubercle 
bacilli of the bovine type cannot be regarded without misgiving. ; 
“ 4. A scientific system of meat inspection affords a valuable protection 
against the transference of tubercle bacilli to human beings by means of me»t, 
and an added protection is afforded by the appropriate preparation of the meat 
(thorough boiling or roasting).” 
“5. The possibility of the transference of tubercle bacilli with milk or milk 
products to human beings will be notably diminished by actiyely .combating 
tuberculosis among cattle. Tubercle bacilli contained in milk can be killed 
by proper heating of the milk.” 
The conclusions arrived at by the English Royal Com- 
mission are as follows : — 
” There can be no doubt but that in a certain number of cases the tuber- 
culosis occurring in the human subject, especially in children, is th_e direct 
result of the introduction into the human body of the bacillus of bovine 
tuberculosis ; and there also can be no doubt that in the majority at least of 
these cases the bacillus is introduced through cows’ milk. Cows’ milk 
VOL. 68. P 
