RESUMO
Los resultados de una encuesta con 7.342 muestras de sangre de 13 países y territorios de las Américas indican una elevada prevalencia de los anticuerpos contra el virus A de la hepatitis en esa Región. Los resultados señalan también una correlación significativa entre la ausencia de dichos anticuerpos y la ausencia de marcadores indicativos de infección por el virus B de la hepatitis (AU)
Assuntos
Vírus da Hepatite A/imunologia , Doadores de Sangue , Epidemiologia Descritiva , Argentina , Barbados , Brasil , Colômbia , Costa Rica , Chile , Equador , México , Peru , Porto Rico , República Dominicana , Suriname , VenezuelaRESUMO
Los resultados de una encuesta con 7,342 muestras de sangur de 13 paises y territorios de las Americas indican una elevada prevalencia de los anticuerpos contra el virus A de la hepatitis en esa Region. Los resultados senalan tambien una correlacion significativa entre la ausencia de dichos anticuerpos y la ausencia de marcadores indicativos de infeccion por el virus B de la hepatitis
Assuntos
Doadores de Sangue , Hepatite A , HepatovirusRESUMO
Los resultados de una encuesta con 7.342 muestras de sangre de 13 países y territorios de las Américas indican una elevada prevalencia de los anticuerpos contra el virus A de la hepatitis en esa Región. Los resultados señalan también una correlación significativa entre la ausencia de dichos anticuerpos y la ausencia de marcadores indicativos de infección por el virus B de la hepatitis (AU)
Assuntos
Vírus da Hepatite A , Doadores de Sangue , Argentina , Barbados , Colômbia , Costa Rica , Chile , Equador , México , Peru , Porto Rico , República Dominicana , Suriname , Venezuela , Epidemiologia Descritiva , BrasilAssuntos
Doadores de Sangue , Portador Sadio , Hepatite B , Anticorpos Anti-Hepatite B , América LatinaRESUMO
Results of the Veneral Disease Research Laboratory (VDRL), rapid plasma reagin (RPR), Treponema pallidum haemagglutination (TPHA), T. pallidum immobilisation (TPI), and fluorescent treponemal antibody absorption (FTA-ABS) tests on sera of 661 children from a region where yaws is hypoendemic are compared. For 107 (16.2%) out of 661 sera the FTA-ABS test was the only one showing reactivity; in these instances the test was weakly reactive (intensity of fluorescence scored as +) and the children had no history and no signs or symptoms of treponemal disease. A solitary, weakly reactive FTA-ABS test result seems to have no clinical significance in these cases. The FTA-ABS test can be used as a confirmatory test for yaws instead of the TPI test, if only the results of sera showing an intensity of fluorescence scored as ++ or more are considered to be positive. There appeared to be no significant differences in the results of the VDRL, RPR, and TPHA tests as screening tests for yaws when the TPI or FTA-ABS tests were used as reference tests.
Assuntos
Bouba/diagnóstico , Adolescente , Cardiolipinas , Criança , Pré-Escolar , Imunofluorescência , Testes de Hemaglutinação , Humanos , Programas de Rastreamento/métodos , Testes Sorológicos , Suriname , Teste de Imobilização do Treponema , Bouba/epidemiologiaRESUMO
Results of a pilot survey in the central, northern region of Surinam indicate that yaws is prevalent (hypoendemic) in this part of the country. No classical symptoms of yaws were seen. The observed lesions were scanty or solitary, dry papillomatous, or macular and scaly, which fits into the clinical picture of attenuated endemic treponematosis.
Assuntos
Bouba/epidemiologia , Adolescente , Criança , Pré-Escolar , Humanos , Masculino , Projetos Piloto , Suriname , Bouba/diagnóstico , Bouba/patologiaRESUMO
Hepatitis B antigen (HBsAg) was found in 5% and hepatitis B antibody (anti-HBs) in 33% of male blood donors from different ethnic groups in Paramaribo, Surinam. Among these ethnic groups only blood donors of Indonesian origin had a higher prevalence of both HBsAg and anti-HBs. The Indonesian donors may acquire this antigen and antibody at an earlier age than donors of Creole origin or of the Mixed ethnic group.
