This tool supports structured infectious-disease decision making but does not replace clinician judgement or local guideline pathways.
This OpiCalc infectious-disease entry reflects commonly used guideline criteria and bedside risk features used in contemporary clinical practice.
Leptospirosis Faine Score: Exposure, symptoms, and basic laboratory clues supporting leptospirosis diagnosis.
Floodwater or animal urine exposure
+2 Points
Acute fever with severe myalgia
Conjunctival suffusion
Jaundice or renal dysfunction
Thrombocytopenia / elevated bilirubin
+1 Points
Endemic or outbreak setting
Assessment Tier
Score 0
Selected features provide limited support for leptospirosis.