a viral hepatitis caused by the hepatitis B virus (HBV), an acute or chronic hepatitis that is caused by a DNA virus (species Hepatitis B virus of the genus Orthohepadnavirus, family Hepadnaviridae), is marked chiefly by fatigue, fever, nausea, vomiting, ab, B‑hepatiidi viiruse tekitatud maksapõletik, mh. vereülekandel, sugulisel teel ja sünnitusel (emalt lapsele) nakkav maksapõletik