Unusual liver infection Infectious hepatitis This term refers to diffuse liver inflammation explicitly linked to an infectious agent. While often used interchangeably with viral hepatitis in clinical settings, here it serves as a grouping term for all pathogen-induced diffuse hepatitis, including bacterial and parasitic forms. Inflammation of the liver tissue caused by an infectious agent, most commonly viruses (e.g., Hepatitis A, B, C), but also potentially by bacteria, parasites, or fungi. It is characterized by diffuse involvement of the liver parenchyma. Infective liver inflammation Rare infectious liver disease Septic hepatitis Unusual infectious hepatitis