678 EXPERIMENT STATION RECORD. 



Intemat. Centbl. Gesam. Tuberkvlose Forsclu, 9 (1915), No. ^ p. 181; Jour. 

 Amer. Vet. Med. Assoc, 48 (1915), No. 3, pp. 328, 5£5).— The author examinetl 

 the cervical, bronchial and mesenteric {.'lands, and occasionally the tonsils, in 

 29 cases of tuberculosis in children, all under 12 years of age. Cultures were 

 isolated from 12 of the cases, 8 yielding human tubercle bacilli, and 4 the bovine 

 type. Threeof the latter 4 died of tubercular meningitis, the other from intra- 

 peritoneal hemorrhage. Tubercular lesions were found in the mesenteric glands 

 of all the cases at the autopsy. In the cases yielding the human type of tubercle 

 bacilli the cultures were derived mainly from the cervical, bronchial, and mesen- 

 teric glands. 



In 80 surgical tubercular cases of children, 12 years of age and under, the 

 bovine bacillus was present in 71 instances and the human bacillus in 9. The 

 organisms were isolated from the cervical glands. It is noted that 84 per cent 

 of the children 2 years old and under had been fed unsterilized cow's milk since 

 birth. The results of an examination of 40G samples of milk collected from the 

 city of Edinburgh showed 82 to contain tubercle bacilli. 



A fatal case of tuberculosis of bovine origin, H. Beitzke (Berlin. Klin. 

 Wchnschr., 51 (l'J14), No. 33, pp. 1531-1540; abs. in Jour. Amer. Yet. Med. 

 Assoc, J/S (1915), No. 3, p. 331). — The author describes a fatal case of tuber- 

 culosis in a 14-year-old boy. All attempts to cultivate the isolated bacillus on 

 artificial media failed, but by Inoculation of rabbits and cattle the organism 

 causing the boy's death was proved to be of the bovine type. It is concluded 

 that the bovine bacillus must be considered a real source of infection for man. 



Tuberculosis in a horse (Ztschr. Veterindrk., 27 (1915), No. 12, pp. 362, 

 363). — The autopsical findings of a case of tuberculosis in a horse which had 

 been used in the artillery service are ri'ported. 



One instance of the occurrence of tuberculosis among' Wyoming cattle and 

 its significance, O. L. Pkien (^yyominf| Sta. Kpt. 1915. pp. 12'f-126). — A case 

 is reported to show the rapidity with which tuberculosis is spread among farm 

 animals. The importation of a small herd of dairy cattle which had been tested 

 and "absolutely guarantied against tuberculosis" was followed by the death of 

 3 calves from the cows imported. 7 liead of hogs, and 26 chickens. Six of the 

 cows and 3 of the calves of the imported herd were condemneil after being 

 tested. The author indicates the need for great caution in the purchase of 

 cattle. 



The production of artificial immunity against tuberculosis in cattle, S. 11. 

 Gii.Lii.AND (Penn. Lire Stock Sanit. Bd. Circ. 32 (1915), pp. 129, pis. 9).— As a 

 result of the work of the State Live Stock Board of Pennsylvania, covering a 

 Iieriod of a number of year.s, the author concludes that " intravenous in.1e<'tlons 

 of tubercle bacilli from human soiirces, nonvirulent for cattle, are capable of 

 conferring an innuunity in cattle against tuberculosis sufficient to withstand 

 natural infection by association with tuberculous cows. The length of the 

 innuunity conferred has not been determined definitely, but it is believed to 

 diminish gradually after two and one-half years. 



"The vaccinated animal during the period of vaccination and for some we<^ks 

 afterward is more liable to contract tuberculosis than a normal animal. The 

 natural resistance of the animal is apparently lowereil during the time of 

 vaccination. The interval between the vaccination should be of a sufficient 

 length to allow any reaction following the previous vaccination to subside 

 entirely. 



"The degree of immunity obtained in the animal depends to a certain extent 

 upon the number of vaccinations and the amount of vaccine administered. 

 The vaccine should be prepared so it contains no clumps of bacilli and should 

 be administered fresh. 



