Tag Archives: Hepatitis B

Hepatitis B – HBV- Prognosis

Prognosis

Hepatitis B virus infection may either be acute (self-limiting) or chronic (long-standing). Persons with self-limiting infection clear the infection spontaneously within weeks to months.


Children are less likely than adults to clear the infection. More than 95% of people who become infected as adults or older children will stage a full recovery and develop protective immunity to the virus. However, only 5% of newborns that acquire the infection from their mother at birth will clear the infection. This population has a 40% lifetime risk of death from cirrhosis or hepatocellular carcinoma. Of those infected between the age of one to six, 70% will clear the infection.

Hepatitis B – HBV- Diagnosis

Diagnosis

The tests, called assays, for detection of Hepatitis B virus infection involve serum or blood tests that detect either viral antigens (proteins produced by the virus) or antibodies produced by the host. Interpretation of these assays is complex.

Hepatitis B viral antigens and antibodies detectable in the blood following acute infection.

Hepatitis B viral antigens and antibodies detectable in the blood of a chronically infected person.

Hepatitis B – HBV- Epidemiology

Epidemiology

Prevalence

Prevalence of Hepatitis B virus as of 2005.

The primary method of transmission reflects the prevalence of chronic HBV infection in a given area. In low prevalence areas such as the continental United States and Western Europe, where less than 2% of the population is chronically infected, injection drug abuse and unprotected sex are the primary methods, although other factors may be important. In moderate prevalence areas, which include Eastern Europe, Russia, and Japan, where 2-7% of the population is chronically infected, the disease is predominantly spread among children. In high prevalence areas such as China and South East Asia, transmission during childbirth is most common, although in other areas of high endemicity such as Africa, transmission during childhood is a significant factor. The prevalence of chronic HBV infection in areas of high endemicity is at least 8%.

Hepatitis B – HBV – Symptoms and Treatment

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.

Hepatitis – Causes, Symptoms, Types, Prevention and Treatment

Hepatitis is the presence of inflammatory cells in the liver tissue caused by excessive alcohol drinking, disorders of the gall bladder or pancreas, including medication side effects, and infections. In this article, we will discuss Causes, Symptoms, Types, Prevention and Treatment of hepatitis.

I. Causes of hepatitis

A person can develop hepatitis if they contract one of the viruses that can cause liver inflammation, or as a result of exposure to substances that can cause hepatitis. There are two ways that can lead to hepatitis: it can either occur as a result of infections or from autoimmune processes.