Ss ee 
Q. 3982, 
3634, 7551, 
See Treat- 
ment, par.67 
See Ques- 
tion and 
Appendix. 
x3ii COMMITTEE ON PLEURO-PNEUMONIA AND TUBERCULOSIS: 
32. Against this view of the infection of the ovum and embryo it has eon suggest ae 
that the disease-producing influence of the bacillus would prevent the ‘ovum from ie 
arriving at maturity. a 
33. Whichever view be accepted, the solution of the practical problem, as int as iis: 5 
connected with this part of the subject, is easy, as all breeders have discovered oe i 
infinite risk of breeding from tubercular stock (see also Articles 79-80). ile 
34. It has also been stated that in and in breeding will, of itself, give: rise’ t6: the x 
disease. This is, of course, erroneous, but, no doubt, such. breeding. im one line. 
disposes to general infection if the virus is. at any time went i ign at ive herd. 
wala Hien (Od DeOG Gets (ale. ab bt 
Mode of Attack and Distribution of the Disease within the Bolly. i (ibe 
: reatot f 
35. The disease, as already referred to, may attack the body of ‘om aniraal i in 
different ways. | 
36. It may, for instance, be introduced into the blood, and be labituelalls 
over the body, spreading so rapidly as to make its entry difficult of Slneover ond 15 
gain for it under this condition the name of acute or general or miliary tuberculosis. — 
37. On the other hand, it may, as already stated, affect for a considerable timo only 
the point of entry and the neighbouring lymphatic glands, becoming subsequen 
distributed over the body from these latter. This is called in the pecih instance Jo 
tuberculosis. ane (See 
38. Local tuberculosis is also occasionally seen to follow the colrbuibast laa 4 
usually produce general tuberculosis; thus in cattle the malady shows itself loca 
under the form known as grapes, where the pleura is alone attacked, this condition 
differing markedly from the form in which the alveoli of the lung itself are been cc 
with the tubercles and the other organs also affected. 
39. Local tuberculosis is more common in man than in the lower ee a tn at 
it frequently attacks one point whatever be the mode of its ics ack introduction 
into the body. In cattle this is very exceptional. 
40. The distribution of the disease in the body is difficult “bo connect with 
special mode of introduction of the virus, save perhaps inhalation. NES Ga OE ; 
41. Undoubtedly, in cattle the lungs and pleure and the serous membranes generally 
are the favourite seats of the malady; any’ and each of the other organs | being occa- 
sionally affected. In pigs it commonly attacks the glands in the neck. In rodents 
the spleen, the liver, the lungs, and the bones. In fowls the nose, mouth, and the 
spleen. In horses, the glands, and in man, the glands, the lungs, the joints, and the 
nervous system. AS it roslonerrdhi, 
42. Possibly, this predilection for the lungs, spleen, joints, &e. is ayaa 
the rate of the circulation in those parts, the tubercle bacillus certainly appe 
grow best where the circulation is least vigorous. ~ 
43. The distribution of the disease and the bacilli in the ey closely eifects 
question of the use of tubercular meat as food. FLAN ae i 
44, It appears that the marrow of the bones is: affected at an early period, and 
that the bacilli may be present therein in considerable quantity: herons con 
themselves by changes obvious to the eye. 
45. Evidence also has been laid before us to show that, although vatelyst “tha 
may affect the flesh, and that the ordinary methods of cooking are often i 
to destroy the bacilli buried in the interior of the limbs. ‘3 
46. Further, although the bacilli may be found but rarely in the flesh, still the 
chance of their being present’ either there or in the blood is too probable to ev 
allow of the flesh of a tubercular animal being used for food under any circu n 
either for man or the lower animals. eG YRS 
47. The tubercles or inflammatory patches produced by the bacilli in their 
the tissues differ rather according to their seat, end the acuteness of the’ disease. | i ORG 
