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May 27, 1905


JAMA. 1905;XLIV(21):1686. doi:10.1001/jama.1905.02500480034004

For twenty years there has existed in the Bitter Root Valley in Montana a peculiar febrile disease known as spotted fever. It is not confined to the Bitter Root Valley, for cases have been observed in the valley of the Snake river in Idaho, in the valley of the Quinn river in Nevada, and in certain parts of Wyoming. Probably on account of its purely local character, the disease has received but little attention until the last few years, and it was not until 1902 that the work of Wilson and Chowning brought it into prominence. The claims of these authors that the disease is due to a peculiar animal parasite similar to that of Texas fever in cattle, and like it transmitted by insects, focused the attention of the profession on the condition. In its clinical aspects, this condition suggests in some ways typhus fever, and in others epidemic

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