Figure 3From: Epidemiology of acute and chronic hepatitis B virus infection in Norway, 1992-2009 Proportion of registered routes of transmission for acute hepatitis B, Norway, 1992-2009 (n = 3053). Proportion of routes of transmission for acute hepatitis B are presented with three colours: sexual route of transmission is presented with a dark blue line; a pink line represents injecting drug use and unknown and/or other routes of transmission are presented in orange colour.Back to article page