نتایج جستجو برای: hbs antibody
تعداد نتایج: 168540 فیلتر نتایج به سال:
BACKGROUND The standard three-dose schedule of hepatitis B vaccines is frequently not completed, especially in adolescents. A primary study has confirmed the equivalence of a two-dose schedule of an Adult formulation of hepatitis B vaccine [Group HBV_2D] to a three-dose schedule of a Paediatric formulation in adolescents (11-15 years) [Group HBV_3D]. This follow-up study evaluated the five year...
BACKGROUND Follow-up studies of recipients of hepatitis B vaccine from endemic areas have reported loss of antibody to hepatitis B surface antigen (anti-HBs) in a high proportion of persons vaccinated at birth. In contrast, the long-term durability of antibody in persons vaccinated as adults in nonendemic areas is not well defined. We aimed to assess the durability of anti-HBs among healthcare ...
Correlation between anti-HBs antibody level with education status and duration of practice among dentists in Qazvin city Dr. Sharifi, M.* -Dr. Borhan Modjabi, K.** -Dr. Salmani, M.R.***- Mostajeri, A.**** -Alipour Heidari, M.***** *Assistant Professor of Microbiology Dept., Faculty of Medicine, Qazvin University of Medical Sciences. **Assistant Professor of Oral Medicine & Diagnosis Dept., Facu...
Hepatitis B virus (HBV) infection is highly endemic in Senegal. Vaccination of all children against HBV was introduced 1999 and included Expanded Programme on Immunisation 2005. The aim this study to assess the prevalence immune status patients received at Pasteur Institut Dakar, Methods: Between January 2016 December 2020, aged between 1 96 years laboratory were study. Serum samples analysed f...
INTRODUCTION Hemodialysis (HD) patients show a weaker response to hepatitis B virus (HBV) vaccination than the healthy population. Several gene variants were reported to be associated with the levels of antibodies to HBV surface antigen (anti-HBs) after HBV vaccination among healthy individuals. OBJECTIVES The aim of the study was to determine the effect of immunity-related genes on the m...
To investigate further the role of hepatitis B antigen (HBs Ag) and specific immune complexes in polyarteritis, sera from 55 histologically confirmed cases were tested for the presence of hepatitis B antigen-associated particles and hepatitis B-antibody (anti HBs) by solid phase radio-immunoassay, electron microscopy, and passive haemagglutination. Results of these findings have been correlated...
Objectives: Hepatitis B virus infection and associated diseases are a major public health problem. This study was planned to find out the persistence of antibody against hepatitis B surface antigen in Iranian vaccinated children after five years. Methodology: Anti-HBs titers in a group of healthy good – responder children who were vaccinated with Cuban hepatitis B vaccine in infancy were measur...
Background and Aim: Hepatitis B virus is the cause of acute and chronic hepatitis, cirrhosis, and hepatocellular carcinoma. Its prevalence has been reported to be 0.1%-0.5% and 1.6%-6.5% in the United States and Iran respectively. At present, the only sure preventive measure is vaccination but it does not create absolute (100%) immunity. Antibody production is between 79% to 90%, which occurs t...
BACKGROUND Vaccination against hepatitis B virus infection (HBV) is safe and effective; however, vaccine-induced antibody level wanes over time. Peak vaccine-induced anti-HBs level is directly related to antibody decay, as well as risk of infection and persistent carriage despite vaccination. We investigated the role of host genetic factors in long-term immunity against HBV infection based on p...
Although the use of recombinant hepatitis B virus surface (HBsAg) protein vaccine has successfully reduced global hepatitis B infection, there are still a number of vaccine recipients who do not develop detectable antibody responses. Various novel vaccination approaches, including DNA vaccines, have been used to further improve the coverage of vaccine protection. Our previous studies demonstrat...
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