Surgery

Updated guidance provided for safe solid organ transplantation

(HealthDay)—Updated recommendations for reducing transmission of HIV, hepatitis B virus (HBV), and hepatitis C virus (HCV) through transplantation include universal solid organ donor nucleic acid testing, according to research ...

Medical research

One-stop test offers instant hepatitis B diagnosis

Viruses are sneaky beings. As the coronavirus pandemic is demonstrating, they cross borders quickly and can be highly contagious before symptoms of disease break out. In many cases of infection, a clear path of transmission ...

Oncology & Cancer

Study uncovers increasing global rates of liver cancer

New research reveals rising rates of liver cancer around the world, despite advances aimed at preventing the disease. The findings are published early online in Cancer, a peer-reviewed journal of the American Cancer Society ...

page 1 from 27

Hepatitis B

Hepatitis B is a disease caused by HBV hepatitis B virus which infects the liver of hominoidae, including humans, and causes an inflammation called hepatitis. Originally known as "serum hepatitis", the disease has caused epidemics in parts of Asia and Africa, and it is endemic in China. About a third of the world's population, more than 2 billion people, have been infected with the hepatitis B virus. This includes 350 million chronic carriers of the virus. Transmission of hepatitis B virus results from exposure to infectious blood or body fluids containing blood.

The acute illness causes liver inflammation, vomiting, jaundice and—rarely—death. Chronic hepatitis B may eventually cause liver cirrhosis and liver cancer—a fatal disease with very poor response to current chemotherapy. The infection is preventable by vaccination.

Hepatitis B virus is an hepadnavirus—hepa from hepatotrophic and dna because it is a DNA virus—and it has a circular genome composed of partially double-stranded DNA. The viruses replicate through an RNA intermediate form by reverse transcription, and in this respect they are similar to retroviruses. Although replication takes place in the liver, the virus spreads to the blood where virus-specific proteins and their corresponding antibodies are found in infected people. Blood tests for these proteins and antibodies are used to diagnose the infection.

This text uses material from Wikipedia, licensed under CC BY-SA