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FURTHER DATA ON THE EFFECT OF VACCINATION AGAINST BOVINE INFECTIOUS ABORTION
1Department of Animal Pathology of The Rockefeller Institute for Medical Research, Princeton, N. J.
The Journal of Experimental Medicine
|October 30, 2009
Abstract:
The partial protection afforded by four injections of a heated culture of Bacillus abortus of normal virulence during the first pregnancy is in part lost in the second. The superiority of a single injection of a living culture of relatively low virulence is evident in both pregnancies. In the experiment described, the protection was complete.
