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April 25, 1931


JAMA. 1931;96(17):1421-1422. doi:10.1001/jama.1931.02720430071022

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Undulant Fever  Dr. Arnold Netter has just presented to the Academy of Medicine a report on undulant fever and its development throughout the entire world. He thinks that the ravages of this disease will continue to increase in all countries in which it is known, including France, and that it is time that serious measures were adopted here against it. He regards as absolutely demonstrated that its causative agent is Brucella abortus, since Kristensen published his convincing observations. The true disease is the epidemic abortive fever that occurs in cows. The passage of the micro-organism through the sheep, the goat and the pig is only secondary, although dangerous for the person contaminated by these animals, in which its virulence is increased. Undulant fever is communicated by the goat to man by the use of milk and cheese derived from the animal, whereas, when the micro-organism comes from cattle, contamination by

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