| [prevalence of hepatitis b, hepatitis c and syphilis in female sex workers in venezuela]. | in venezuela, female sex workers are submitted to a preventive control of syphilis and human immunodeficiency virus (hiv). however, other very important sexually transmitted infections are not evaluated. a study was carried out to identify the sociocultural background of a group of sex workers and its association with the seroprevalence of hepatitis b and c markers, in addition to routine evaluation. | 2003 | 12792685 |
| high incidence of hepatitis c virus infection in hemodialysis patients in units with high prevalence. | the prevalence of hepatitis c virus (hcv) infection was evaluated in 227 hemodialysis patients from four units in caracas, venezuela, by using different second- and third-generation enzyme immunoassays (eias) and immunoblot assays. hcv antibodies were detected in 162 patients (71%) by the recombinant-based second-generation assays (abbott and ortho) and in 161 patients by the synthetic peptide-based eia (ubi). of the 162 hcv antibody-positive serum samples, 161 were confirmed to be positive by r ... | 1996 | 8784559 |
| viral hepatitis serological markers among pregnant women in caracas, venezuela: implication for perinatal transmission of hepatitis b and c. | viral hepatitis serological markers were analyzed in two groups of pregnant women residing in caracas from: 1) a maternity unit at the moment of delivery (106 sera, low income population), and 2) a private clinic during the third trimester of pregnancy (105 sera, medium-high economic class population). a higher percent positivity was observed in the maternity unit compared to the private clinic for hepatitis a virus (hav) as measured by anti-hav activity (96% vs 48%; p < 0.01%), for hepatitis b ... | 1994 | 7926616 |