Table 1. Sign and symptom-based visual algorithm (http://bit.ly/HepE_Card) used to identify candidate cases of acute viral hepatitis.

Components of Illness Score	Points
Nausea or Vomiting	1
Fever or Lassitude (such that normal work is impeded)	1
Anorexia (or repulsion by smell of food)	2
Yellow Eyes or Yellow Skin	2
Dark Urine or Ash/Clay-colored stools	2