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1.
MMWR Morb Mortal Wkly Rep ; 72(10): 256-260, 2023 Mar 10.
Artigo em Inglês | MEDLINE | ID: mdl-36893046

RESUMO

In 2007, voluntary medical male circumcision (VMMC) was endorsed by the World Health Organization (WHO) and the Joint United Nations Programme on HIV/AIDS after it was found to be associated with approximately a 60% reduction in the risk for female-to-male transmission of HIV (1). As a result of this endorsement, the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), through partnerships with U.S. government agencies, including CDC, the U.S. Department of Defense, and the U.S. Agency for International Development, started supporting VMMCs performed in prioritized countries in southern and eastern Africa. During 2010-2016, CDC supported 5,880,372 VMMCs in 12 countries (2,3). During 2017-2021, CDC supported 8,497,297 VMMCs performed in 13 countries. In 2020, the number of VMMCs performed declined 31.8% compared with the number in 2019, primarily because of COVID-19-related disruptions to VMMC service delivery. PEPFAR 2017-2021 Monitoring, Evaluation, and Reporting data were used to provide an update and describe CDC's contribution to the scale-up of the VMMC program, which is important to meeting the 2025 Joint United Nations Programme on HIV/AIDS (UNAIDS) target of 90% of males aged 15-59 years having access to VMMC services in prioritized countries to help end the AIDS epidemic by 2030 (4).


Assuntos
Síndrome da Imunodeficiência Adquirida , COVID-19 , Circuncisão Masculina , Infecções por HIV , HIV-1 , Humanos , Masculino , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , África Austral/epidemiologia , África Oriental/epidemiologia , Programas Voluntários
2.
N Engl J Med ; 367(5): 423-34, 2012 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-22784038

RESUMO

BACKGROUND: Preexposure prophylaxis with antiretroviral agents has been shown to reduce the transmission of human immunodeficiency virus (HIV) among men who have sex with men; however, the efficacy among heterosexuals is uncertain. METHODS: We randomly assigned HIV-seronegative men and women to receive either tenofovir disoproxil fumarate and emtricitabine (TDF-FTC) or matching placebo once daily. Monthly study visits were scheduled, and participants received a comprehensive package of prevention services, including HIV testing, counseling on adherence to medication, management of sexually transmitted infections, monitoring for adverse events, and individualized counseling on risk reduction; bone mineral density testing was performed semiannually in a subgroup of participants. RESULTS: A total of 1219 men and women underwent randomization (45.7% women) and were followed for 1563 person-years (median, 1.1 years; maximum, 3.7 years). Because of low retention and logistic limitations, we concluded the study early and followed enrolled participants through an orderly study closure rather than expanding enrollment. The TDF-FTC group had higher rates of nausea (18.5% vs. 7.1%, P<0.001), vomiting (11.3% vs. 7.1%, P=0.008), and dizziness (15.1% vs. 11.0%, P=0.03) than the placebo group, but the rates of serious adverse events were similar (P=0.90). Participants who received TDF-FTC, as compared with those who received placebo, had a significant decline in bone mineral density. K65R, M184V, and A62V resistance mutations developed in 1 participant in the TDF-FTC group who had had an unrecognized acute HIV infection at enrollment. In a modified intention-to-treat analysis that included the 33 participants who became infected during the study (9 in the TDF-FTC group and 24 in the placebo group; 1.2 and 3.1 infections per 100 person-years, respectively), the efficacy of TDF-FTC was 62.2% (95% confidence interval, 21.5 to 83.4; P=0.03). CONCLUSIONS: Daily TDF-FTC prophylaxis prevented HIV infection in sexually active heterosexual adults. The long-term safety of daily TDF-FTC prophylaxis, including the effect on bone mineral density, remains unknown. (Funded by the Centers for Disease Control and Prevention and the National Institutes of Health; TDF2 ClinicalTrials.gov number, NCT00448669.).


Assuntos
Adenina/análogos & derivados , Antirretrovirais/uso terapêutico , Desoxicitidina/análogos & derivados , Infecções por HIV/prevenção & controle , HIV-1 , Organofosfonatos/uso terapêutico , Adenina/efeitos adversos , Adenina/uso terapêutico , Adolescente , Adulto , Antirretrovirais/efeitos adversos , Densidade Óssea/efeitos dos fármacos , Comportamento Contraceptivo/estatística & dados numéricos , Desoxicitidina/efeitos adversos , Desoxicitidina/uso terapêutico , Farmacorresistência Viral , Quimioterapia Combinada , Emtricitabina , Feminino , Soropositividade para HIV , HIV-1/genética , HIV-1/isolamento & purificação , HIV-2/genética , HIV-2/isolamento & purificação , Humanos , Estimativa de Kaplan-Meier , Masculino , Organofosfonatos/efeitos adversos , Modelos de Riscos Proporcionais , RNA Viral/sangue , Comportamento Sexual/estatística & dados numéricos , Tenofovir , Carga Viral , Adulto Jovem
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