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What is Hepatitis-B?



What is Hepatitis-B?

Hepatitis B is an infection in your liver. It makes you feel tired and sick and causes your liver to work poorly. A virus causes hepatitis B. The virus can be found in the blood and other body fluids (seminal fluid, vaginal secretions, breast milk, tears, saliva, and open sores) of people who have hepatitis B. You can get the virus from contaminated blood and nonsterile needles or syringes. You can also get the virus by having sex with someone who has hepatitis B. An infected mother can also give hepatitis B to her baby.
Don't Drink alcohol!

There is no specific treatment for hepatitis B. You should get lots of rest, eat a well-balanced diet and drink lots of fluids. Bed rest may be necessary until the jaundice disappears and your appetite returns. Your diet should include foods that are high in carbohydrates. These foods include breads, pasta, and whole grain foods. Avoid foods that are high in fat.

Hepatitis B is a serious disease. Fortunately about 90% of the people recover within 3 months and don't get it again. Some people don't have symptoms but they still have the virus and can give it to others. Source(s): Clinical textbooks and patient information handouts.
i think its a type of (excuse my spelling mistakes) Meninga Cocle
The hepatitis B virus is a member of the Hepadnavirus family. It consists of a proteinaceous core particle containing the viral genome in the form of double stranded DNA with single-stranded regions and an outer lipid-based envelope with embedded proteins. The envelope proteins are involved in viral binding and release into susceptible cells. The inner capsid relocates the DNA genome to the cell's nucleus where viral mRNAs are transcribed. Three subgenomic transcripts encoding the envelope proteins are made, along with a poorly understood transcript encoding the X protein, whose function is still under debate. A fourth pre-genomic RNA is transcribed, which is exported to the cytosol and translates the viral polymerase and core proteins. Polymerase and pre-genomic RNA are encapsidated in assembling core particles, where reverse transcription of the pre-genomic RNA to genomic DNA occurs by the polymerase protein. The mature core particle then exits the cell via normal secretory pathways, acquiring an envelope along the way.

Hepatitis B is one of a few known non-retroviral viruses which employ reverse transcription as part of its replication process. Other viruses which use reverse transcription include HTLV or HIV, the virus that causes AIDS, but HIV and hepatitis B are not related. Hepatitis B's genome is DNA, and reverse transcription is one of the latter steps in making new viral particles, whereas HIV has an RNA genome and reverse transcription is one of the first steps in replication.
http://en.wikipedia.org/wiki/hepatitis_b...
Hepatitis-B it is a vacine. or in otherwords it is an injection given to the childrens and adults to protect from virus
Hepatitis is a gastroenterological disease, featuring inflammation of the liver. The clinical signs and prognosis, as well as the therapy, depend on the cause.

Hepatitis B

Hepatitis B causes both acute and chronic hepatitis in some patients who are unable to eliminate the virus. Identified methods of transmission include blood (blood transfusion, now rare), tattoos (both amateur and professionally done), horizontally (sexually or through contact with blood or bodily fluids), or vertically (from mother to her unborn child). However, in about half of cases the source of infection cannot be determined. Blood contact can occur by sharing syringes in intravenous drug use, shaving accessories such as razor blades, or touching wounds on infected persons. Needle-exchange programmes have been created in many countries as a form of prevention. In the United States, 95% of patients clear their infection and develop antibodies against Hepatitis B virus. 5% of patients do not clear the infection and develop chronic infection; only these people are at risk of long term complications of Hepatitis B. Patients with chronic hepatitis B have antibodies against Hepatitis B, but these antibodies are not enough to clear the infection that establishes itself in the DNA of the affected liver cells. The continued production of virus combined with antibodies is a likely cause of immune complex disease seen in these patients. A vaccine is available that will prevent infection from hepatitis B for life. Hepatitis B infections result in 500,000 to 1,200,000 deaths per year worldwide due to the complications of chronic hepatitis, cirrhosis, and hepatocellular carcinoma. Hepatitis B is endemic in a number of (mainly South-East Asian) countries, making cirrhosis and hepatocellular carcinoma big killers. There are three, FDA-approved treatment options available for persons with a chronic hepatitis B infection: alpha-interferon, adefovir and lamivudine. In about 45% of persons on treatment achieve a sustained response.

Signs and symptoms

Hepatitis is characterised by fatigue, malaise, joint aches, abdominal pain, vomiting 2-3 times per day for the first 5 days, loss of appetite, dark urine, fever, hepatomegaly (enlarged liver) and jaundice (icterus). Some chronic forms of hepatitis show very few of these signs and only present when the longstanding inflammation has led to the replacement of liver cells by connective tissue; the result is cirrhosis. Certain liver function tests can also indicate hepatitis.
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