Hepatitis

Lore & Background

Chronic hepatitis lasts more than six months and is often asymptomatic early on. It can progress to cirrhosis, liver failure, and liver cancer. Causes include viral infections (hepatitis A, B, C, D, E; also cytomegalovirus, Epstein–Barr virus, yellow fever virus), heavy alcohol use, medications, toxins, autoimmune diseases, and non-alcoholic steatohepatitis (NASH). Hepatitis A and E spread via contaminated food and water; hepatitis B and C via blood and body fluids; hepatitis D only infects those already with hepatitis B. Immunization prevents hepatitis A, B, and D. Antiviral medications treat chronic hepatitis C; no specific treatment exists for NASH, but lifestyle changes are recommended.

Reader's Guide

Hepatitis is a major cause of liver disease worldwide, with viral hepatitis accounting for hundreds of millions of infections and over a million deaths each year. Its significance lies in its diverse causes and outcomes: acute cases can resolve, become chronic, or rarely lead to liver failure. Chronic hepatitis often progresses silently to cirrhosis or liver cancer, making early detection and treatment crucial. Preventable through immunization for types A, B, and D, hepatitis remains a public health challenge, especially in regions with poor sanitation or high rates of intravenous drug use. The condition's legacy includes ongoing research into antiviral therapies and liver transplantation for advanced disease.

Did You Know?

• Hepatitis A and E are mainly spread by contaminated food and water.
• Hepatitis D can only infect people already infected with hepatitis B.
• The word 'hepatitis' comes from Greek hêpar (liver) and -itis (inflammation).