FIGURE 3.

Management algorithm for the diagnosis and management of HDV infection. Flow chart indicating management of patient with HBV infection. Outlined are the required investigations and how to proceed according to the investigation results. +VE, positive; −VE, negative; Ab, antibody; HBsAg, hepatitis B surface antigen; HBeAg, hepatitis B all envelope antigen; HBV, hepatitis B virus; HCV, hepatitis C virus; HDV, hepatitis delta virus; NA, nucleos(t)ide analogue; peg‐IFN, pegylated interferon; TE, transient elastography; USS, ultrasound screening