Characteristics of participants.

†<p>gender was registered for 5139 participants: 367 leptospirosis patients; 4772 non leptospirosis patients.</p>*<p>Age was registered for 5143 participants: 367 leptospirosis patients; 4776 non leptospirosis patients.</p>#<p>DPO of first sample was calculated from 2703 participants of whom first day of onset was known as well as date of sample collection: 330 leptospirosis patients; 2373 non leptospirosis patients.</p>##<p>DPO of follow up sample was calculated from 630 participants of whom first day of onset was known as well as date of sample collection: 276 leptospirosis patients; 354 not leptospirosis patients.