Wednesday, November 27, 2013

Hepatitis B

Hepatitis B virus (HBV) is the most everyday cause of long-lasting liver affliction worldwide. Chronic HBV can cause necro inflammation and over period can cause hepatic fibrosis and eventually cirrhosis, end-position liver disease, and hepatocellular carcinoma (HCC). It is estimated that 350 million people have inveterate HBV infection, with approximately 1.25 million of them in the United States. HBV is a DNA virus that is spread through exposure to infected blood and corpse fluids. It typically is transmitted by parenteral, sex, and vertical exposures, but may be transmitted through person-to-individual contacts among household members, especially because HBV can survive outside the body for large periods of time. Because HIV and HBV share transfer routes, up to 90% of HIV-Infected patients have evidence of HBV baring. In the United States, chronic HBV infection has been identified in 6-15% of HIV-infected persons.
The epidemiology of HBV infection varies by geographic area. In Southeast Asia and sub-Saharan Africa, HBV is highly prevailing and almost all infections occur perinatally or during early childhood. In the United States and Western Europe, most infections occur through sexual exposure or tall-danger injection medicament use behavior.

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