Perinatal transmission of hepatitis B virus is the infection of infants at birth by mothers who are positive for hepatitis B surface antigen. Around 85% of babies born to mothers who are also positive for hepatitis B e antigen become infected. Immunoprophylaxis initiated shortly after birth— that is, after exposure to the virus—can prevent perinatal transmission. Passive prophylaxis with hepati...

A literature search was carried out to investigate the factors that influence the protective efficacy (PE) of hepatitis B vaccines when given to neonates of hepatitis B surface antigen and e antigen positive mothers. Hepatitis B vaccines with either high or low antigen doses are very effective in preventing chronic hepatitis B infection in neonates at risk, but there is evidence that with lower...

Hepatitis B surface antigen (HBsAg) seems to have significant clinical implications to assess the prognosis of chronic hepatitis B (CHB). We assessed HBsAg levels serially in patients with CHB in a single center in Turkey. How to cite this article: Ozkan H. HBV Treatment in Turkey: The Value of Hepatitis B Surface Antigen Quantification of Chronic Hepatitis B Patients in the Long-term Follow-up...

Several gene fusions have been constructed in which coding sequences for antigenic regions of the pre-S sequences of hepatitis B virus, hepatitis B surface antigen, and the envelope protein of human immunodeficiency virus were linked to the 3' end of that for the first 144 residues of hepatitis B core antigen. The sequences were expressed efficiently in Escherichia coli to give stable products ...

Hepatitis B virus DNA was extracted from serial serum samples of a hepatitis B surface antigen-negative patient with antibodies to the core protein as the only marker of an infection with hepatitis B virus. This patient showed no symptoms of hepatic injury. Sequencing of the amplified viral DNA demonstrated multiple amino acid changes clustering in surface-exposed regions of the surface protein...

The frequency of HAV, HBV, HCV and HDV infections were evaluated in children with thalassemia haematologic by ELİSA. A total 136 serum specimens tested for this purpose. Hepatitis B surface antigen (HBsAg) positivity was found 46 % patients leukemia, 50 lymphoma 16.6 thalassemic children. Anti present 8 leukeınia group group. our opinion, vira! hepatitis that have a great prevalence multitransf...

  Background and Objective: Presence of hepatitis B core antibody (anti-HBc) in the absence of hepatitis B surface antigen (HBsAg) and hepatitis B surface antibody (anti-HBs) is defined, as isolated anti-HBc. little is known about the clinical significance of the isolated anti-HBc in hepatitis B virus (HBV) infections. The aim of this study was to assess the significance of anti-HBc as the onl...

A boy was born to a mother who was a chronic hepatitis B virus (HBV) carrier. She was hepatitis Be (HBe) antibody positive and HBe antigen and HBV-DNA negative. The boy had not received hepatitis B vaccine and died from fulminant hepatitis at 3 months of age. This case demonstrates the need to vaccinate babies of HBe antibody positive, HBe antigen negative carriers.