Hepatitis Viruses

Hepatitis Viruses

The term ‘viral hepatitis’ is employed to explain infections caused by a diverse group of viruses. They mainly infect liver. Six heterogeneous groups of viruses have been identified, and termed as Hepatitis A, B, C, D, E and G. Acute hepatitis might also take place in other viral infections, like CMV, HSV, EB virus, and yellow fever virus. All such viruses present an identical clinical picture during the acute phase of illness. The specific diagnosis can only be made in the laboratory. General clinical manifestations are nausea, anorexia, vomiting, right upper quadrant pain, elevated liver jaundice and enzymes. The majority of infections are completely asymptomatic. Hepatitis virus type A and E are enterically transmitted. Hepatitis virus type B, C, D and G parenterally transmitted.

Viruses which chiefly attack the liver are termed as Hepatitis viruses. There are many kinds of hepatitis viruses comprising kinds A, B, C, D, E, and maybe G. Kinds A, B, and C are the most ordinary.

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Those at risk for viral hepatitis involve workers in the health care occupation, people with numerous sexual partners, hemophiliacs and intravenous drug abusers. Blood transfusion is an infrequent cause of viral hepatitis.

Symptoms of acute viral hepatitis comprise fever, fatigue, flu-like signs, dark urine, light-colored stools, and jaundice; though, acute viral hepatitis might take place with minimal symptoms which go unrecognized. Not often, acute viral hepatitis causes fulminate hepatic failure. The symptoms of chronic viral hepatitis frequently are mild and non-specific, and the diagnosis of chronic hepatitis frequently is deferred.

Hepatitis infections can be barred by avoiding exposure to viruses, vaccines or injectable immunoglobulins.

 

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