Viêm gan do siêu vi là bệnh thông thường nhất trong tất cả các bệnh gan. Bệnh viêm gan do nhiều loại vi khuẩn ưa gan (hepatotropic viruses) gây nên. Nói chung, đa số (95%) trường hợp gan viêm đều do một trong sáu loại siêu vi có mang tên A,B,C,D, E và G gây nên. | VIÊM GAN DO SIÊU VI TỪ A TỚI G VIRAL HEPATITIDES FROM A TO G Cường Trịnh, . Giang Nguyễn Trịnh, ., . Abstract. Hepatitis is an inflammation of the liver in which diffuse or patchy necrosis affects all liver acini and destroys liver architecture. Most hepatitis is of viral origin. Hepatitis A, B, and C are the most common types of viral hepatitis in the United States. Hepatitis A, transmitted through the fecal-oral route, is not associated with chronic carriage of virus or with chronic disease. HAV occurs in epidemics both nationwide and in communities. The best protection against hepatitis A virus infection is hepatitis A vaccine. Hepatitis B and C are both bloodborne diseases transmitted when blood or body fluids from an infected person enter the body of a susceptible person. Both hepatitis B and C can cause chronic infection that can lead to cirrhosis and hepatocellular carcinoma. Hepatitis B vaccine is the best protection against infection with HBV, but there is no vaccine available to prevent HCV infection. Hepatitis E virus, also referred to as non-A, non-B, non-C hepatitis, is an acute rather than chronic illness. This self-limiting enteric virus, spread by fecal-oral transmission, occurs endemically in underdeveloped countries with inadequate sanitation; water contamination is the major source of infection This article focuses on the epidemiology, clinical presentation and treatment of the viral hepatitis from A to G. Chronic hepatitis B may be treated with interferon alfa-2b or nucleoside analogues. Treatment for hepatitis C now includes antiviral therapy with interferon, possibly combined with ribavirin. Universal precautions are particularly important for clinicians who treat patients with viral hepatitis. Dẫn nhập Viêm gan do siêu vi là bệnh thông thường nhất trong tất cả các bệnh gan. Bệnh viêm gan do nhiều loại vi khuẩn ưa gan (hepatotropic viruses) gây nên. Nói chung, đa số (95%) trường hợp gan viêm đều do một trong sáu loại siêu vi có mang