554 APPENDIX II 
Principle A. No meat should be used for food if it contains tubercle bacilli, or 
if there is a reasonable possibility that it may contain tubercle bacilli, or if it is 
impregnated with toxic substance of tuberculosis or associated septic infections. 
Principle B. Meat should not be destroyed if the lesions are localized and _ not. 
numerous, if there is no evidence of distribution of tubercle bacilli through the blood 
or by other means to the muscles or to parts that may be eaten with the muscles, 
and if the animal is well nourished and in good condition, since in this case there is no 
proof, or even reason to suspect, that the flesh is unwholesome. 
Principle C. Evidences of generalized tuberculosis are to be sought in such distri~ 
bution and number of tuberculosis lesions as can be explained only upon the supposi- 
tion of the entrance of tubercule bacilli in considerable number into the systemic 
circulation. Significant of such generalization is the presence of numerous uniformly 
distributed tubercles throughout both lungs, also tubercles in the spleen, kidneys, 
bones, joints, and sexual glands, and in the lymph glands connected with these organs 
and parts, or in the splenic, renal, prescapular, popliteal, and inguinal glands, when 
several of these organs and parts are coincidentally affected. 
Principle D. Localized tuberculosis is tuberculosis limited to a single or several 
parts of organs of the body without evidence of recent invasion of numerous bacilli 
into the systemic circulation. 
Paragraph 2. The meat of animals affected with tuberculosis shall be disposed of 
as follows: y 
Rule A. The entire carcass shall be condemned if any of the following conditions 
occur: 
(a) When it was observed before the animal was killed that it was suffering with 
fever. 
_ (b) When there is a tuberculous or other cachexia, as shown by anemia and emacia- 
tion. 
(c) When the lesions of tuberculosis are generalized, as shown by their presence 
not only at the usual seats of primary infection but also in parts of the carcass or in 
the organs that may be reached by the bacilli of tuberculosis only when they are carried 
in the systemic circulation. Tuberculous lesions in any two of the following men- 
tioned organs are to be accepted as evidence of generalization when they occur in 
addition to local tuberculous lesions in the digestive or respiratory tracts, including 
the lymph glands connected therewith: Spleen, kidneys, uterus, udder, ovary, testicle, 
adrenal gland, and brain or spinal cord or their membranes. Numerous tubercles 
uniformly distributed throughout both lungs also afford evidence of generalization. 
(d) When the lesions of tuberculosis are found in the muscles or intermuscular 
tissue or bones or joints, or in the body lymph glands as a result of draining the muscles, 
bones, or joints. 
(e) When the lesions are extensive in one or both body cavities. 
(f) When the lesions are multiple, acute, and actively progressive. (Evidence 
of active progress consists in signs of acute inflammation about the lesions, or liquefac- 
tion necrosis, or the presence of young tubercles.) 
Rule B. An organ or a part of a carcass shall be condemned under any of the 
following conditions: 
(a) When it contains lesions of tuberculosis. 
(b) When the lesion is localized but immediately adjacent to the flesh, as in the 
case of tuberculosis of the parietal pleura or peritoneum. In this case not only the 
membrane or part affected but also the adjacent thoracic or abdominal wall is to be 
condemned. 
(c) When it has been contaminated by tuberculous material through contact 
with the floor or a soiled knife or otherwise. 
(d) Heads showing lesions of tuberculosis shall be condemned, except that when the 
heads of hogs are from carcasses passed for food of for sterilization and the lesions 
are slight, are calcified or encapsulated, and are confined to lymph glands in which 
not more than two glands are involved, the head may be passed for sterilization after 
the diseased tissues have been removed and condemned. 
a An organ shall] be condemned when the corresponding lymph gland is tuber- 
culous. 
