RT Journal T1 VIenna JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1929 FD January 19 VO 92 IS 3 SP 246 OP 247 DO 10.1001/jama.1929.02700290056024 UL http://dx.doi.org/10.1001/jama.1929.02700290056024 AB Infections with Bacillus Abortus BoumĀ  At one of the recent meetings of the Vienna Gesellschaft der Aerzte, Professor Spengler discussed the infection of human beings with Bacillus abortus, or Bang's bacillus, which causes infectious abortion in cattle. The infection is of more frequent occurrence than is generally supposed. This bacillus differs very slightly, morphologically and culturally, from the causative agent of undulant fever, some authors regarding them as identical. The transmission of the Bang bacillus occurs chiefly through the use of unboiled milk, and in Dresden it was found in 32 per cent of all milk specimens examined. The Bang bacillus is sometimes eliminated for many years after an apparent recovery from an infection. German authors have described seven cases of such infections; among others, three in veterinarians. Christensen made researches in 2,000 cases of typhoid, and in eighty-seven cases he found an agglutination of the Bang bacillus. In a