is hepatitis b a virus?
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Hepatitis B is a viral infection that attacks the liver and can cause both acute and chronic disease. The virus is most commonly transmitted from mother to child during birth and delivery, as well as through contact with blood or other body fluids.
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Different strains of hepatitis exist, including hepatitis A, B, C, and D. The most common types of hepatitis are A, B, and C. Hepatitis A is usually a short-term infection while hepatitis B and C can cause long-term, or chronic, infections. A person can have both hepatitis B and hepatitis C at the same time.
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Hepatitis A virus (HAV), classified as hepatovirus, is a small, unenveloped symmetrical RNA virus which shares many of the characteristics of the picornavirus family, and is the cause of infectious or epidemic hepatitis transmitted by the fecal-oral route.
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How did I get it ? There are several ways of getting hepatitis B. One way is by sexual contact with an infected person. Hepatitis B virus is transmitted through blood and body fluids especially through anal sex.
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anti-HBc or HBcAb (Hepatitis B core antibody) - A "positive" or "reactive" anti-HBc (or HBcAb) test result indicates a past or current hepatitis B infection. The core antibody does not provide any protection against the hepatitis B virus (unlike the surface antibody described above).
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Hepatitis B and hepatitis C can also begin as short-term infections but in some people, the virus remains in the body, and causes chronic (lifelong) infection. There are vaccines to prevent hepatitis A and hepatitis B; however, there is no vaccine for hepatitis C.
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Abstract. Hepatitis A virus is an enteric picornavirus. Its genome is a single stranded RNA molecule of positive-strand polarity of 7478 bases.
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Hepatitis B can be passed from an infected mother to her baby at birth or from a family member to young children. Hepatitis B is not a genetic disease. People also do not get Hepatitis B from sharing meals, bowls or utensils with someone who has the disease.
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Hepatitis A is a virus found in human faeces (poo). It's usually passed on through contaminated food and water, but it's also a sexually transmitted infection (STI) passed on by having sex without a condom or dental dam (particularly anal sex), fingering and rimming, or sharing sex toys with someone who has the virus.
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HBV, a member of the Hepadnaviridae family, is a small DNA virus with unusual features similar to retroviruses. HBV replicates through an RNA intermediate and can integrate into the host genome. The unique features of the HBV replication cycle confer a distinct ability of the virus to persist in infected cells.
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Hepatitis B surface antigen (HBsAg): A protein on the surface of hepatitis B virus; it can be detected in high levels in serum during acute or chronic hepatitis B virus infection. The presence of HBsAg indicates that the person is infectious.
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Virology. The hepatitis B virus (HBV) is a small DNA virus with unusual features similar to retroviruses. It is a prototype virus of the Hepadnaviridae family. Related viruses are found in woodchucks, ground squirrels, tree squirrels, Peking ducks, and herons.
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All pregnant women are tested for hepatitis B. There are different blood tests for hepatitis B virus infection. They can tell whether you have been infected recently or whether you are a carrier.
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Hepatitis B infection is caused by the hepatitis B virus (HBV). The virus is passed from person to person through blood, semen or other body fluids.
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Hepatitis A is caused by a virus that infects liver cells and causes inflammation. The inflammation can affect how your liver works and cause other signs and symptoms of hepatitis A. The virus most commonly spreads when you eat or drink something contaminated with fecal matter, even just tiny amounts.
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If the “HBsAg” was positive, this means that you are either chronically infected with hepatitis B or were recently infected. If only the “anti-HBc” was positive, it is most likely that you either had a “false-positive” test or are immune to hepatitis B infection (had hepatitis B infec- tion sometime in the past).
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Hepatitis B Symptoms in Infants and Children The hepatitis B virus mainly affects the liver, and enters the liver cells (called hepatocytes) when in the body. Reproduction of the virus causes death of these cells. The sudden death of a large number of liver cells can cause liver damage or even liver failure.