Septicæmic infection in lambs caused by the bacillus of swine erysipelas

Septicæmic infection in lambs caused by the bacillus of swine erysipelas

212 ABSTRACTS. TWO CASES OF ABORTION OF TUBERCULOUS ORIGIN. IN connection with a communication by Professor B. Bang on six cases of abortion in cows...

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212

ABSTRACTS.

TWO CASES OF ABORTION OF TUBERCULOUS ORIGIN. IN connection with a communication by Professor B. Bang on six cases of abortion in cows caused by tubercle bacilli, the author communicates two similar cases. As in Bang's cases, no marked tuberculous changes in the fcetal membranes were discovered. The chorion was somewhat thickened and cedematous. Between the cotyledons numerous nodules were seen, but they did not show a tuberculous structure. The cotyledons were red, with yellow necrotic spots, and were covered by detritus containing numerous tubercle pacilli. Giant cells or typical tuberculous tissue were not found on microscopic examination of the cotyledons and chorion, but tubercle bacilli were present in small numbers in the latter. Bacillus abortus Bang could not be demonstrated. (Axel Thomsen, Maanedsskr. for Dyrlaeger, XXX!., 1919.)

SEPTIClEMIC INFECTION IN LAMBS CAUSED BY THE BACILLUS OF SWINE ERYSIPELAS. AT the post-mortem examination of a lamb, aged thirty-eight hours, which came from a flock in which there had been a very large mortality among the lambs, the author found hcemorrhagic enteritis, great enlargement of the mesenteric glands, degenerative changes in other organs, and small hcemorBoth by microscopic rhages under the endocardi1lm and epicardium. examination and by cultivation experiments the presence of small bacilli w~re found to be present in pure culture, and further examination showed that these corresponded completely with swine erysipelas bacilli. They grew in the characteristic manner in gelatin, and in experiments with mice it was found that swine erysipelas serum averted the otherwise lethal effect of the bacilli. The virulence of the bacilli for grey mice was strikingly high. No case of swine erysipelas in pigs had occurred at the farm in question during the time of the outbreak among the lambs. (M. Christiansen, Maanedsskr. for Dyrlaeger, XXX!., 1919.)

ABORTION IN CATTLE CAUSED BY SPIRILLA. ON examining eleven cases of abortion in cows the author succeeded in demon:;trating in the fcetuses from four cases the presence of the spirillum or vibrio (Vibrio fcetus) first described by M'Fadyean and Stockman, and lately by Theobald Smith. These four ca