Prevalence of anti-Leptospira antibodies among age groups residing in households with an index cases of severe leptospirosis and neighbourhood control households.

Prevalence of anti-Leptospira antibodies is defined as having microscopic agglutination titres ��1��25 to a pathogenic Leptospira serovar.aOR and 95%CI were adjusted for the design effect associated with sampling households in the survey.