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Hepatitis C (originally "non-A non-B hepatitis") is caused by hepatitis C virus (HCV), an RNA virus of the family Flaviviridae. HCV can be transmitted through contact with blood (including through sexual contact if the two parties' blood is mixed) and can also cross the placenta.
The Hepatitis B virus (HBV) polymerase is a multifunctional enzyme, with both RNA-dependent and DNA-dependent polymerase functions, as well as an RNase H function. It acts on the HBV pre-genomic RNA (pgRNA) to reverse transcribe it to form a new rcDNA molecule within a new capsid.
Hepatitis B virus (HBV) is a partially double-stranded DNA virus, [1] a species of the genus Orthohepadnavirus and a member of the Hepadnaviridae family of viruses. [ 2 ] [ 3 ] This virus causes the disease hepatitis B .
The RNA polymerases treat the RNA genome as double-stranded DNA due to the folded rod-like structure it is in. ... Hepatitis D virus was first reported in 1977 as a ...
The blood carries the virus to its target, the liver, where it multiplies within hepatocytes and Kupffer cells (liver macrophages). Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive-stranded RNA virus replication model.
The hepatitis C virus (HCV) [3] is a small (55–65 nm in size), enveloped, positive-sense single-stranded RNA virus of the family Flaviviridae. The hepatitis C virus is the cause of hepatitis C and some cancers such as liver cancer ( hepatocellular carcinoma , abbreviated HCC) and lymphomas in humans.
HBV was identified as a new DNA virus in the 1960s, followed a couple of decades later by the discovery of the flavivirus hepatitis C. HBV was first identified in the lab as the "Australia agent" by Blumberg and colleagues in the blood of an Aboriginal transfusion patient. This work earned Blumberg the 1976 Nobel Prize in Medicine.
Hepatitis E is inflammation of the liver caused by infection with the hepatitis E virus (HEV); [4] [5] it is a type of viral hepatitis. [6] Hepatitis E has mainly a fecal-oral transmission route that is similar to hepatitis A , although the viruses are unrelated.
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