| prevalence of antibodies to hepatitis c virus in populations at low and high risk for sexually transmitted diseases in rio de janeiro. | in order to investigate the sexual transmission of the hepatitis c virus (hcv), the prevalence of specific antibodies in populations at high and low risk for sexually transmitted diseases (stds) was evaluated. the population at low risk for stds was composed of persons who voluntarily donated blood at the hospital universitário clementino fraga filho (hucff) between july and november, 1990 (n = 2494). the population at high risk for stds was drawn from an ongoing study on the natural history of ... | 1993 | 7509022 |
| prevalence of anti-hepatitis c virus in the blood donor population of rio de janeiro. | the prevalence of hepatitis c virus (hcv) antibodies in 2,557 asymptomatic volunteer brazilian blood donors is reported. using the line immunoassay (inno-lia) as a confirmatory test on elisa anti-hcv-positive reacting sera, a prevalence rate of 2.7% for anti-hcv positivity was found. by comparison, prevalences of 1.6% for hepatitis b surface antigen, 0.9% for treponema pallidum, 0.4% for human immunodeficiency virus and 0.04% for trypanosoma cruzi were observed. only 57% of the hcv-positive dono ... | 1993 | 7692672 |