The use of ancillary laboratory tests in leptospirosis, with particular reference to the diagnosis of the mild case.

The incidence of leptospirosis in British troops serving in Malaya has afforded a good opportunity for the comparative evaluation of the clinical and laboratory examinations of a large number of mild cases of the disease, and the use of these tests in diagnosis and in the differentiation of leptospirosis from other causes of fever (Robinson and Kennedy, 1956; McCrumb, Stockland, Robinson, Turner, Levis, Maisey, Kelleher, Gleiser, and Smadel, 1957). It is hoped that the results obtained from the present series of cases will, by supplementing an all too scanty literature, contribute to further understanding of the reaction to infection in the mild case of leptospirosis. Materials and Methods