نتایج جستجو برای: hepatitis b antibody
تعداد نتایج: 1085596 فیلتر نتایج به سال:
Background: The outcome of acute hepatitis B infection may be influenced by host genetic factors like human leukocyte antigen (HLA). To investigate the association between the HLA-DRB, DQA1 and DQB1 alleles and chronic hepatitis B infection, 50 patients with chronic hepatitis B (based on 6 months positive of HBsAg and HBc antibody and HBeAg and antibody by serological test), were selected from ...
Introduction: Besides from dermal route, recently vertical transmission of hepatitis C has been a matter of investigation and the risk of transmission is evaluated. The aim of this study was to determine the risk of mother-to-infant vertical transmission of hepatitis C. Methods: In this descriptive study, over a period of 2 years, between Aug. 1998 and Jun. 2000, two thousands pregnant women ...
Background: Hepatitis B is an important infectious disease. Since several years ago, mass vaccination against this viral infection has become as part of routine vaccination schedule of Iran. However, some healthy neonates, children and adults fail to generate a protective antibody response after vaccination.Objectives: To investigate distribution of HLA class-I and class-II antigens in health...
Background The duration of infantile hepatitis B vaccination-induced immunity is still unknown. We assessed antibody persistence and immunological memory to hepatitis B 18 years after vaccination during infancy in Iranian young adults at risk of hepatitis B virus infection due to behavioral or occupational exposures. Methods This study was conducted on 395 freshman students of with a history of...
Background: Thalassemia patients are more susceptible to hepatitis than the normal population due to the frequent blood transfusions. Objective: To determine the immune response of children with major ß-thalassemia, by measuring anti-hepatitis B surface antibody (anti-HBs Ab) following the last HBV vaccine injection. Methods: This study was carried out on 215 thalassemic children who received t...
Introduction: Vaccination with the major surface antigen of hepatitis B virus (HBsAg) induces anti-HBs antibody production and level of 10 IU/L is considered protective. It has been shown that the level of anti-HBs antibody does wane after vaccination. The aim of this study was to evaluate the persistence of anti-HBs antibodies in healthy Iranian children 10 years after primary vaccination. Me...
background: hepatitis b virus (hbv) fails to produce appropriate immune responses in some healthy individuals; thus, different strategies have been adopted to promote immune responses. the current study aimed at evaluating the efficacy of hbv vaccine coadministered with tetanus-diphtheria (td) vaccine compared with hbv vaccine in healthy individuals through measuring hepatitis b surface antibod...
BACKGROUND Hepatitis A and B vaccines are effective in preventing superinfection and sequelae in patients with chronic hepatitis B or C. We describe immunity and vaccination against hepatitis A and B in chronic hepatitis patients from the US Chronic Hepatitis Cohort Study. METHODS We identified chronic hepatitis B and C patients with healthcare utilization during 2006-2008 and 12 months of en...
diagnosis of hepatitis b is routinely based on of serological assay of hepatitis b surface antigen (hbsag). occult hepatitis b virus (hbv) infection is generally defined as the detection of hbv -dna in the serum or tissues of subjects who have negative test for hbsag. transmission of hbv infection has been documented from hbsag negative, anti-hbc positive blood and organ donors. the aim of this...
background: the household transmission of hepatitis b virus (hbv) is a major health problem. high incidence of hbv infection is observed within the household contacts of hbv carriers. we aimed to evaluate serological markers of hepatitis b infection among family members of hbv carriers in arak, central iran. methods: data were collected from the 100 chronic hbv carriers (subjects with positive ...
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