Use of a fluorescent antibody technique for the serological differentiation of leptospiral serotypes in cultures and in bovine urine

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Abstract
Extract Leptospirosis is a common and important cattle disease in some parts of New Zealand and increasing numbers of human infections are being reported, particularly in dairy farming areas (Anon., 1972 Anon. Public Health Report 1972 N.Z. Dept of Health Wellington 1972 [Google Scholar] ). In a recent survey it was found that 24 of 65 cattle (37%) from properties where human leptospirosis was recorded were excreting leptospira-like organisms in their urine. These cattle did not have serum agglutinating antibodies to a variety of commonly employed serotypes, at titres that were considered to be of diagnostic importance (D. E. Lake, pers. comm.).