“…These phases are not necessarily sequential, nor mandatory for all patients; sometimes, a reversion to an earlier phase is noted. Host and viral factors; coinfection with other viruses such as hepatitis C virus (HCV), hepatitis D virus (HDV) or human immunodeficiency virus (HIV); family history; and other comorbidities, including obesity, can affect the natural course of HBV infection [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. Another important thing to mention is that the covalently closed circular HBV-DNA (cccDNA) persists indefinitely in hepatocytes, and low-level viral replication or re-activation in some circumstances is possible; at the same time, the HBV genome may integrate in the host genome, generating risk for hepatocarcinoma (HCC) [ 13 , 14 , 15 ].…”