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Hepatitis E results from HEV infection and is spread by fecally contaminated water within endemic areas. HEV is an RNA virus of the genus Hepevirus. It was discovered during electron microscopy of feces contaminated with enteric non-A, non-B hepatitis Hepatitis D virus (HDV) is an RNA virus that is structurally unrelated to hepatitis A, hepatitis B, or hepatitis C virus. It was discovered in 1977. HDV causes a unique infection that requires the assistance of viral particles from hepatitis B virus (HBV) to replicate and infect other hepatocytes

Hepatitis C is an infectious disease affecting primarily the liver, caused by the hepatitis C virus (HCV). The infection is often asymptomatic, but chronic infection can lead to scarring of the liver and ultimately to cirrhosis, which is generally apparent after many years. In some cases, those with cirrhosis will go on to develop liver failure, liver cancer or life-threatening esophageal and gastric varices.

Hepatitis B Treatment Acute Hepatitis B infection does not usually require treatment because most adults clear the infection spontaneously.Early antiviral treatment may be required in fewer than 1% of people, whose infection takes a very aggressive course (fulminant hepatitis) or who are immunocompromised. On the other hand, treatment of chronic infection may be necessary to reduce the risk of cirrhosis and liver cancer. Chronically infected individuals with persistently elevated serum alanine aminotransferase, a marker of liver damage, and HBV DNA levels are candidates for therapy.Treatment lasts from six months to a year, depending on medication and genotype. Hepatitis A Treatment There is no specific treatment for Hepatitis A. Sufferers are advised to rest, avoid fatty foods and alcohol (these may be poorly tolerated for some additional months during the recovery phase and cause minor relapses), eat a well-balanced diet, and stay hydrated If a person becomes dehydrated, the doctor may prescribe IV fluids. If a patient is experiencing significant nausea and vomiting, they will receive medicines to control these symptoms. People whose symptoms are well controlled can be cared for at home. If dehydration or other symptoms are severe, or if the patient is extremely confused or difficult to arouse, they will most likely be hospitalized.