Review
Copyright ©The Author(s) 2021.
World J Gastroenterol. Jul 14, 2021; 27(26): 4018-4044
Published online Jul 14, 2021. doi: 10.3748/wjg.v27.i26.4018
Table 5 Hepatitis D virus highlights

Hepatitis D virus
1The natural course and outcome of acute hepatitis D differ according to HBV and HDV co-infection or superinfection
2HDV and HBV genotypes in addition to host factors influence the course of chronic hepatitis
3The implications on liver disease of HVD, HBV, and innate immunity interplay remain to be understood
4Chronic setting leads to more severe hepatitis associated with higher rates of HCC and a faster progression to cirrhosis compared with HBV monoinfection. HDV pathologic changes are limited to the liver with histopathologic features that are not specific for it
5HDV remains difficult to treat with the current available therapies, and although, several promising new therapies have been described treatment is still the greatest challenge in HDV infection