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Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) that affects the liver; [1] [6] it is a type of viral hepatitis. [7] It can cause both acute and chronic infection. [1]Many people have no symptoms during an initial infection. For others, symptoms may appear 30 to 180 days after becoming infected and can include a rapid onset of sickness with nausea, vomiting ...
Symptoms. Symptoms of acute hepatitis B range from mild to serious. The symptoms usually start about 1 to 4 months after you've been infected with HBV.But you could notice them as early as two weeks after you're infected.
Learn the basics of hepatitis B, including symptoms, spread, prevention, vaccination, and treatment.
The structure of hepatitis B virus. Hepatitis B virus is a member of the Hepadnavirus family. [11] The virus particle, called Dane particle [12] (), consists of an outer lipid envelope and an icosahedral nucleocapsid core composed of protein.The nucleocapsid encloses the viral DNA and a DNA polymerase that has reverse transcriptase activity similar to retroviruses. [13]
Causes. Hepatitis B is caused by infection with HBV. HBV is a 40-42-nanometer enveloped virus classified in the Hepadnaviridae family. HBV contains a circular, partially double-stranded DNA genome that is 3.2 kb in length.
Hepatitis B virus is a contagious liver infection spread from person-to-person via blood or body fluids. Who is at risk for HBV? Read about it here.
Overview . Hepatitis B (HBV) infection is a major public health problem and cause of chronic liver disease. The 2024 HBV guidelines provide updated evidence-informed recommendations on key priority topics. These include expanded and simplified treatment criteria for adults but now also for adolescents; expanded eligibility for antiviral prophylaxis for pregnant women to prevent mother-to-child ...
What is hepatitis B vaccine? Hepatitis B is a disease of the liver that is spread through blood or bodily fluids, sexual contact or sharing IV drug needles with an infected person, or during childbirth when the mother is infected. Hepatitis causes inflammation of the liver, vomiting, and jaundice (yellowing of the skin or eyes). Hepatitis can lead to liver cancer, cirrhosis, or death.
Hepatitis B infection is the most common liver infection globally, caused by the hepatitis B virus (HBV). People from endemic areas, or injection drug users and those with high-risk sexual behaviours, are at an increased risk for infection. Most people are asymptomatic, although some will present...
Hepatitis B virus (HBV) is a hepatotropic virus that can establish a persistent and chronic infection in humans through immune anergy. Currently, 3.5% of the global population is chronically ...