CANICOLA FEVER

1 June 1952

journal article
research article
Published by American Medical Association (AMA) in A.M.A. Archives of Internal Medicine

Vol. 89 (6) , 978-993
https://doi.org/10.1001/archinte.1952.00240060121015

Abstract

LEPTOSPIRAL infections are endemic throughout the world. Weil's disease (leptospirosis icterohemorrhagiae), the commoner and severer of the two principal forms, has been widely discussed in the literature since its first description in 1886.¹Canicola fever (leptospirosis canicola), on the other hand, is sparsely reported on, perhaps because of its more recent clinical recognition (1937),²its relatively benign course, and its comparative rarity. In the light of these facts, the present report of nine cases of the latter disease occurring in one family would appear to be especially significant. This report was initially prepared with a complete review of the world literature on canicola fever, but with the current appearance of Rosenberg's³exhaustive and commendable review it was decided necessary to abstract only the more significant contributions to the problem. CAUSATION AND INCIDENCE The causative organisms of leptospiral infections are morphologically identical even under the electron microscope.⁴The spirochetes are delicate,

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