In chronic hepatitis B (CHB), the persistence of hepatitis B surface antigen (HBs Ag) is sometimes associated with antibodies (Ab) to HBs (anti-HBs). To assess the hypothesis of the selection of HBs Ag immune escape variants in CHB patients, the variability of the HBV S gene was determined for patients persistently carrying both HBs Ag and anti-HBs antibodies and patients solely positive for HB...

Introduction: Intravenous drug users as a serious health problem in communities have economical and social effects as well as health and hygienic complications. Viral infections may be transmitted through drug injection by shared syringes among users. The aim of this study has been to determine the relative frequency of HBV, HCV and HIV infection’s markers as epidemiological data in Ahvaz. Ma...

Materials and methods Our database NADIS allows us to collect information from March 1986 to October 2013 (gender, age, CD4 count, HIVRNA and Hepatitis B surface antibody titers = HBs Ab > 10 IU / L.) Patients were included gradually after 3 Engerix B 20 hepatitis B vaccines at day 1, one month and 6 months later, conferring a rate of HBs ab > 10 IU /L. Then we observed the duration of protecti...

background: hepatitis b with its complications has become one of the universal problems. injection drug use is one of the most important risk factors in the transmission of hepatitis b. therefore, we assessed hepatitis b virus prevalence among cases with a history of intravenous drug use (ivdu) as the first announcement-based study in this regard. materials and methods: the announcement based d...

To evaluate the relationships between human T lymphotropic virus type I (HTLV-I) and hepatitis virus type B (HBV) infections, we compared both individual and geographical distributions of carriers of HTLV-I and HBV, and antibody positives to HBV in two ATL-endemic islands in Kyushu, Japan. The positive rates of antibodies to HTLV-I (anti-HTLV-I-Ab) in sera among healthy inhabitants older than 3...

BACKGROUND Hepatitis B with its complications has become one of the universal problems. Injection drug use is one of the most important risk factors in the transmission of hepatitis B. Therefore, we assessed hepatitis B virus prevalence among cases with a history of intravenous drug use (IVDU) as the first announcement-based study in this regard. MATERIALS AND METHODS The announcement-based d...