Prevalence of anti-<i>Leptospira</i> 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.