476 
THE TUBERCLE BACILLUS GROUP 
the organism was isolated and identified. Six children and 1 adult 
had glandular swelling in the neck, but the evidence was not conclusive 
that bo^'ine infection had taken place. The general conclusion was 
that there was relatively little danger from drinking milk containing 
viable bovine tubercle bacilli. 
Much more convincing are the studies of Park and Krumwiede.^ 
The accompanying table, which is their summary of their own exten- 
sive investigation and a recapitulation of authentic observations of 
others, shows very definitely that infection with bovine bacilli is rela- 
tively common in children and young adults up to sixteen years of 
age, but relatively uncommon in adults. Bovine infection is almost 
invariably food-borne infection. It is of importance to the clinician, 
but not to the epidemiologist because bovine infection of man is 
practically never transmissible to other men. 
Combined Tabulation, Cases Reported and Own 
(Park and Krumwiede.) 
Series of Cases. 
Diagnosis. 
Adults 16 years 
and over. 
Children 
5 to 16 years. 
Children 
under 5 years. 
Human. 
Bovine. 
Human. Bovine. 
Human. 
Bovine. 
Pulmonary tuberculosis .... 
Tuberculous adenitis, axillary or 
inguinal 
Tuberculous adenitis, cervical . 
Abdominal tuberculosis .... 
Generalized tuberculosis, alimentary 
origin 
Generalized tuberculosis .... 
Generalized tuberculosis, including 
meninges, alimentary origin . 
Generalized tuberculosis, including 
meninges 
Tubercular meningitis .... 
Tuberculosis of bones and joints 
Genito-urinary tuberculosis . 
Tuberculosis of skin 
Miscellaneous cases: 
Tuberculosis of tonsils 
Tuberculosis of mouth and cervi- 
cal nodes 
Tuberculous sinus or abscesses . 
Sepsis, latent bacilli .... 
568 
2 
22 
15 
6 
28 
4 
18 
11 
1 
2 
1? 
11 
4 
33 
7 
2 
4 
1 
7 
2 
26 
1 
1 
20 
7 
3 
1 
1 
1 
12 
2 
15 
6 
13 
28 
3 
45 
14 
21 
1 
1 
20 
13 
10 
5 
8 
1 
2 
Totals 
677 
9 
99 
33 
161 
59 
Mixed or double infections, 4 cases. 
Total cases, 1042. 
Bovine bacilli are found not only in unpasteurized market milk,^ 
but also in glandular organs of a considerable proportion of cattle 
1 Trans. Sixth Ann. Meet. Natl. Assn. Study and Preven. Tuberculosis. 
'^ See Kober (Trans. Am. Phys.) for literature to 1903. Hess: Jour. Am. Med. Assn., 
inog, 52, 1011. Moore: Jour. Med. Res., 1911, 24, 517. 
