Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add filters








Language
Year range
1.
Rev. bras. hematol. hemoter ; 36(2): 152-158, Mar-Apr/2014. tab
Article in English | LILACS | ID: lil-710194

ABSTRACT

The Retrovirus Epidemiology Donor Study (REDS) program was established in the United States in 1989 with the purpose of increasing blood transfusion safety in the context of the HIV/AIDS and human T-lymphotropic virus epidemics. REDS and its successor, REDS-II were at first conducted in the US, then expanded in 2006 to include international partnerships with Brazil and China. In 2011, a third wave of REDS renamed the Recipient Epidemiology and Donor Evaluation Study-III (REDS-III) was launched. This seven-year research program focuses on both blood banking and transfusion medicine research in the United States of America, Brazil, China, and South Africa. The main goal of the international programs is to reduce and prevent the transmission of HIV/AIDS and other known and emerging infectious agents through transfusion, and to address research questions aimed at understanding global issues related to the availability of safe blood. This article describes the contribution of REDS-II to transfusion safety in Brazil. Articles published from 2010 to 2013 are summarized, including database analyses to characterize blood donors, deferral rates, and prevalence, incidence and residual risk of the main blood-borne infections. Specific studies were developed to understand donor motivation, the impact of the deferral questions, risk factors and molecular surveillance among HIV-positive donors, and the natural history of Chagas disease. The purpose of this review is to disseminate the acquired knowledge and briefly summarize the findings of the REDS-II studies conducted in Brazil as well as to introduce the scope of the REDS-III program that is now in progress and will continue through 2018.


Subject(s)
Humans , Blood Safety , Hematologic Diseases , Retroviridae Infections/epidemiology , Retroviridae , Blood Transfusion/standards
2.
Rev. panam. salud pública ; 19(1): 44-53, ene. 2006. graf
Article in English | LILACS | ID: lil-431745

ABSTRACT

La primera descripción del virus de la leucemia humana de células T tipo 1 (VLHT-1) se hizo en 1980, y al poco tiempo, en 1982, se descubrió el VLHT-2. Desde entonces las características principales de estos virus, a los que a menudo se les llama VLHT-1/2, se han estudiado exhaustivamente. Centroamérica, América del Sur y el Caribe son áreas con una alta prevalencia de VLHT-1 y VLHT-2 donde hay conglomerados de personas infectadas. Las principales vías de transmisión han sido el contacto sexual, la sangre y sus derivados, y la de madre a hijo por la leche materna. El VLHT-1 se asocia con la leucemia o el linfoma de células T maduras (LTM), la mielopatía o paraparesia tropical espástica ligada al VLHT (M/PTE), y la uveítis ligada al VLHT, así como con la dermatitis infecciosa de la infancia. Se necesita más información acerca del posible papel que desempeña el VLHT en la aparición de enfermedades reumáticas, psiquiátricas e infecciosas. En vista de que no se dispone de ninguna cura para la LTM ni la M/PTE, como tampoco de ninguna vacuna para prevenir la transmisión del VLHT-1 y VLHT-2, estas enfermedades acarrean enormes costos sociales y económicos para las personas infectadas, sus parientes y los sistemas de salud. Por este motivo, las intervenciones sanitarias orientadas a asesorar e instruir a personas y poblaciones en alto riesgo revisten una importancia crítica. En el continente americano esto cobra aun más importancia en zonas de alta prevalencia.


Subject(s)
Adult , Child , Female , Humans , Infant, Newborn , Male , Middle Aged , Pregnancy , Deltaretrovirus Infections/epidemiology , Blood Donors , Breast Feeding , Caribbean Region/epidemiology , Central America/epidemiology , Cross-Sectional Studies , Deltaretrovirus Infections/prevention & control , Deltaretrovirus Infections/transmission , HTLV-I Infections/epidemiology , HTLV-I Infections/prevention & control , HTLV-I Infections/transmission , HTLV-II Infections/epidemiology , HTLV-II Infections/prevention & control , HTLV-II Infections/transmission , Leukemia, T-Cell/epidemiology , Leukemia-Lymphoma, Adult T-Cell/epidemiology , Lymphoma, T-Cell , Paraparesis, Tropical Spastic/epidemiology , Pregnancy Complications, Infectious/epidemiology , Risk Factors , South America/epidemiology , United States/epidemiology
SELECTION OF CITATIONS
SEARCH DETAIL