| long term effects of one or two doses of hepatitis b vaccine in adults after five years. | the aim of this study is to evaluate hepatitis b vaccine protection in those adults who have taken one or two does of vaccine before. it was a retrospective cross sectional study was conducted on fifty-six military personnel in tehran, iran in the spring 2007. demographic data such as age, marital status, education level, number of vaccine doses injected and, type of vaccine and date of last vaccination was collected. their serum was tested for hbs ab, hbc ab and hbs ag and finally the results w ... | 2008 | 18817145 |
| the frequency of hepatitis d virus in patients with hepatitis b in iran: an increasing rate? | this study sought to determine the seroprevalence of the hepatitis d virus (hdv), the risk factors and its association with the severity of liver disease. continuous patients at tabriz and tehran hepatitis clinics were enrolled during 2007-2008 in a cross-sectional study. demographic data and possible risk factors for infection were recorded for all hepatitis b surface antigen positive patients. the blood samples of 847 patients infected with the hepatitis b virus were evaluated. the seroprevale ... | 2009 | 19535751 |
| seroepidemiology and clinical features of hepatitis delta among hbsag carriers: a study from hepatitis clinic of iranian blood transfusion organization. | hepatitis b is a significant health problem and more than 350 million individuals are infected with hepatitis b virus (hbv) globally. about 5% of these individuals are coinfected with hepatitis d virus (hdv). hbv-hdv coinfection increases the rate of fulminant hepatitis, chronic hepatitis and cirrhosis. this study aimed to evaluate the epidemiology of hdv in individuals positive for hepatitis b surface antigen (hbsag) who were referred to tehran blood transfusion hepatitis clinic from 2011 to 20 ... | 2014 | 25523297 |
| tehran dentists' knowledge and attitudes towards hepatitis b and their willingness to treat simulated hepatitis b positive patients. | the dental profession has a high risk of hepatitis b virus (hbv) contamination and can play a crucial role in controlling hbv cross-contamination. in this cross-sectional study we used unique methods to assess tehran dentists' knowledge, attitude and behaviour regarding hbv. two simulated hbv-positive patients visited 300 general/specialist dentists in their offices and recorded dentists' willingness to treat them. later, the dentists were interviewed regarding their knowledge about hepatitis b ... | 2014 | 25150357 |
| prevalence of hepatitis b infection in rheumatoid arthritis patients. | rheumatoid arthritis is a progressive and destructive inflammatory disease of the joints. they had increased mortality depend to use of immunosuppressive drugs. hepatitis b virus infection is also a health problem in the world. iran is moderate prevalence endemic area for hepatitis b virus and it is come too reduced recently by children vaccination. aim of this study is determined prevalence and screening of hepatitis b virus infection in rheumatoid arthritis patients. this study is a descriptiv ... | 2013 | 24506005 |
| risk factors influencing dentists' hepatitis b-related knowledge and attitudes and their willingness to treat hepatitis b positive patients. | this study assessed factors that could predict dentists' knowledge, attitudes and behaviour towards hepatitis b virus (hbv). a total of 300 dentists in tehran, islamic republic of iran were surveyed and their demographic, educational and office characteristics were analysed in relation to their scores on knowledge about hbv, self-reported attitudes towards treating people infected with hbv and actual behaviour towards treating simulated hbv-positive patients. having a master's degree, faculty me ... | 2015 | 25907193 |
| prevalence and trends of transfusion-transmitted infections among blood donors in tehran, iran from 2008 to 2013. | evaluation of trends in the rate of transfusion-transmitted infections (ttis) in blood donors is essential for monitoring blood supply safety and donor screening effectiveness. the aim of this study was to determine the trends and prevalence of hepatitis b virus (hbv), hepatitis c virus (hcv), human immunodeficiency virus (hiv), and syphilis seromarkers among blood donors referred to tehran blood transfusion center (tbtc) from 2008 to 2013. | 2015 | 25892591 |
| Iranian dental students' knowledge of hepatitis B virus infection and its control practices. | With more than two billion infected people, from whom 350 to 400 million suffer from chronic infection, hepatitis B virus (HBV) is still a major health problem worldwide. As dental treatment puts both dentists and patients at a higher risk of HBV infection, dentists can play an important role in preventing HBV transmission in dental settings. This study was performed to evaluate dental students' awareness and practice regarding HBV-related issues and to compare the results obtained from differen ... | 2011 | 22184603 |
| hepatitis e virus infection in patients infected with human immunodeficiency virus in an endemic area in iran. | some studies have suggested that hepatitis e virus is more frequent in human immunodeficiency virus (hiv) patients and can progress to chronic infection. we aimed to determine the prevalence of hepatitis e virus antibodies and rna in a series of 100 hiv-infected patients in tehran, iran, with comparison to 52 healthy hiv, hepatitis b and c-negative blood donors as controls. hiv-infected patients were also tested for hepatitis e virus-rna. among the hiv-infected patients, 10% had antibodies to he ... | 2013 | 23970597 |
| incidence of hepatitis b and hiv virus at cadaver of iv drug abusers in tehran. | injection drug use has been the most growing rout of drug abuse in iran in the past decade and it has been responsible for the transmission of hiv virus in more than two third of cases. the aim of the present study was to determine the prevalence of hiv and hepatitis b in a group of idu cadavers and to compare the results to a group of cadavers of the normal population. in a case-control study the blood samples of the cadavers of 400 randomly chosen idus and 400 other cadavers as control group w ... | 2011 | 21425074 |
| antibody titration and immune response of iranian beta-thalassemic patients to hepatitis b virus vaccine (booster effect). | thalassemia is hereditary anemia with lifelong transfusion as treatment and hepatitis b virus (hbv) infection is one of the transfusion transmitted infections (tti). hbv vaccination is obligatory for these patients by 3 double-dose injections. the authors studied the hbv status and immune response to vaccination by hepatitis b surface antibody (hbsab) titration in their thalassemic patients. they also compared these results with their previous study to find out the effectiveness of a booster dos ... | 2009 | 19437322 |
| occult hepatitis b virus infection in hemodialysis patients with isolated hepatitis b core antibody: a multicenter study. | occult hepatitis b virus (hbv) infection is characterized by presence of hbv infection with undetectable hepatitis b surface antigen (hbsag). occult hbv infection harbors potential risk of hbv transmission through hemodialysis (hd). the aim of this study was to assess the occult hbv infection in hemodialysis patients with isolated hepatitis b core antibody (anti-hbc). a total of 289 hd patients from five dialysis units in tehran, iran, were included in this study. hepatitis b surface antigen (hb ... | 2010 | 20609190 |
| prevalence of hbv, hcv, hiv and syphilis among homeless subjects older than fifteen years in tehran. | homeless people are usually prone to be infected with multiple infectious diseases such as human immunodeficiency virus, hepatitis b virus, and hepatitis c virus, as well as syphilis. in this cross-sectional study, using a questionnaire and enzyme-linked immunosorbant assay, we evaluated the seroprevalance of hepatitis b and c viruses, human immunodeficiency virus, and syphilis, as well as their risk factors in 202 homeless men. a total of 70 (34.7%), 87 (42.8%), and 13 (6.4%) subjects were infe ... | 2009 | 19722771 |
| hiv, hepatitis c virus, and hepatitis b virus co-infections among injecting drug users in tehran, iran. | to assess the prevalence of hiv, hepatitis b virus (hbv) and hepatitis c virus (hcv) infections and co-infections among injecting drug users (idus) in tehran. | 2010 | 19464218 |
| occupational exposure to body fluids among healthcare workers: a report from iran. | healthcare workers (hcws) are at substantial risk of acquiring blood-borne infections through contact with body fluids of patients. the main objectives of this study were to determine the epidemiological characteristics and risk factors of the occupational exposures to body fluids. | 2008 | 18581025 |
| genotype analysis of hepatitis delta virus from hepatitis b surface antigen-positive patients using pcr-rflp in tehran, iran. | hepatitis delta virus is a unique human pathogen responsible for some 20 million infections globally. this virus is dependent on hepatitis b virus for transmission and propagation. currently, at least three genotypes of hepatitis delta virus with different geographic distribution and clinical manifestations are described. | 2009 | 19400600 |
| the prevalence of hepatitis b surface antigen and anti-hepatitis b core antibody in iran: a population-based study. | hepatitis b virus infection is a very common cause of chronic liver disease worldwide. it is estimated that 3% of iranians are chronically infected with hepatitis b virus. current population-based studies on both rural and urban prevalence of hepatitis b virus infection in iran are sparse with results that do not always agree. we performed this study to find the prevalence of hepatitis b surface antigen, anti-hepatitis b core antibody, and associated factors in the general population of three pr ... | 2009 | 19400598 |
| seroepidemiologic study of hepatitis b virus, hepatitis c virus, human immunodeficiency virus and syphilis infections in iranian blood donors. | to determine the frequency of hepatitis b, hepatitis c, human immunodeficiency virus (hiv) and syphilis infections in iranian blood donors. the prevalence of serological markers of hepatitis b, hepatitis c, hiv and syphilis infections were evaluated in 318029 consecutive volunteer blood donors attending to tehran blood transfusion service from march 2005 to march 2006. those positive for hepatitis b surface antigen, anti-hcv, anti-hiv1/2 and vdrl (venereal disease research laboratory) reactivity ... | 2007 | 19093512 |
| seroclearance of hbsag in chronic hepatitis b virus patients on lamivudine therapy: a 10 year experience. | the aim of this study was to determine hepatitis b surface antigen (hbsag) seroclearance rate among patients treated with lamivudine at a specialized tertiary care referral hospital in tehran, iran. | 2015 | 26153167 |
| prevalence of hiv, hbv and hcv among street and labour children in tehran, iran. | the existence of street and working children in iran is undeniable. the precarious conditions of these children (including disrupted family, poverty, high prevalence of crime among relatives, family members and peers) cause social harm and high-risk behaviours, including drug addiction, selling sex or having sex with adolescents or peers. here we explore the hiv, hepatitis b and hepatitis c status of street and working children in tehran. | 2016 | 27601728 |
| prevalence of hepatitis b, hepatitis c, human immunodeficiency virus, and syphilis among street children residing in southern tehran, iran. | street children are among vulnerable people in the world. they are one of the main groups in the society who affect the pattern of health. to determine the prevalence of hepatitis b, hepatitis c, human immunodeficiency viruses (hiv), and syphilis among street children residing in southern tehran, iran. in a cross-sectional study, we selected 102 children aged below 15 years from southern tehran. the selected children had an interview and were examined. from each child a blood sample was taken an ... | 2006 | 16649359 |
| hepatitis g virus exposure in dialysis patients. | hepatitis g virus (hgv) is a blood-borne virus. the predominant route of its transmission is parenteral. the aim of this study was to assess the frequency of hgv exposure in haemodialysis (hd) and continuous ambulatory peritoneal dialysis (capd) patients in iran. | 2007 | 17786579 |
| epidemiology of hepatitis b, hepatitis c, and human immunodeficiency virus infecions in patients with beta-thalassemia in iran: a multicenter study. | though regular blood transfusion improves the overall survival of patients with beta-thalassemia, it carries a definite risk of infection with blood-borne viruses. we carried out this multicenter study to provide epidemiologic data on hepatitis b virus (hbv), hepatitis c virus (hcv), and human immunodeficiency virus (hiv) infection among iranian beta-thalassemic patients. moreover, hcv infection-associated risk factors were investigated in this population. | 2006 | 17061602 |
| biochemical response to lamivudine treatment in hbeag negative chronic hepatitis b patients in iran. | to study the effect of a one-year lamivudine regimen in patients with chronic hepatitis b. | 2006 | 16830375 |
| hepatitis-c and hepatitis-b co-infections in patients with human immunodeficiency virus in tehran, iran. | we carried out a study to determine the seroprevalence of hbv and hcv infections in hiv positive patients at a main referral center for hiv/aids in iran. serum samples from 201 hiv positive patients referring to a referral center for hiv/aids were analyzed for the presence of some hepatitis b (hbsag, anti-hbc, anti-hbs) and hepatitis c (anti-hcv) markers, during 2004- 2005. hbsag was positive in 27 patients (13.4%), anti-hbc was positive in 60 patients (29.8%) and anti-hbs in 23 patients (11.4%) ... | 2011 | 21713737 |
| seroepidemiology of human t-cell lymphotropic virus among iranian adult thalassemic patients. | a large number of transfusion-dependent thalassemic patients is at a substantial risk for transfusion-transmitted infections. human t-cell lymphotropic virus (htlv) is a blood-borne pathogen and can be transmitted via cellular products. we aimed to evaluate the seroprevalence of htlv in transfusion-dependent thalassemic patients referred to tehran adult thalassemia clinic. | 2014 | 25124072 |