RESUMEN
INTRODUCTION: Virtually no African country provides HIV prevention services in sex work settings with an adequate scale and intensity. Uncertainty remains about the optimal set of interventions and mode of delivery. METHODS: We systematically reviewed studies reporting interventions for reducing HIV transmission among female sex workers in sub-Saharan Africa between January 2000 and July 2011. Medline (PubMed) and non-indexed journals were searched for studies with quantitative study outcomes. RESULTS: We located 26 studies, including seven randomized trials. Evidence supports implementation of the following interventions to reduce unprotected sex among female sex workers: peer-mediated condom promotion, risk-reduction counselling and skills-building for safer sex. One study found that interventions to counter hazardous alcohol-use lowered unprotected sex. Data also show effectiveness of screening for sexually transmitted infections (STIs) and syndromic STI treatment, but experience with periodic presumptive treatment is limited. HIV testing and counselling is essential for facilitating sex workers' access to care and antiretroviral treatment (ART), but testing models for sex workers and indeed for ART access are little studied, as are structural interventions, which create conditions conducive for risk reduction. With the exception of Senegal, persistent criminalization of sex work across Africa reduces sex workers' control over working conditions and impedes their access to health services. It also obstructs health-service provision and legal protection. CONCLUSIONS: There is sufficient evidence of effectiveness of targeted interventions with female sex workers in Africa to inform delivery of services for this population. With improved planning and political will, services - including peer interventions, condom promotion and STI screening - would act at multiple levels to reduce HIV exposure and transmission efficiency among sex workers. Initiatives are required to enhance access to HIV testing and ART for sex workers, using current CD4 thresholds, or possibly earlier for prevention. Services implemented at sufficient scale and intensity also serve as a platform for subsequent community mobilization and sex worker empowerment, and alleviate a major source of incident infection sustaining even generalized HIV epidemics. Ultimately, structural and legal changes that align public health and human rights are needed to ensure that sex workers on the continent are adequately protected from HIV.
Asunto(s)
Transmisión de Enfermedad Infecciosa/prevención & control , Infecciones por VIH/prevención & control , Trabajadores Sexuales , África del Sur del Sahara , Antirretrovirales/uso terapéutico , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/terapia , Política de Salud , Accesibilidad a los Servicios de Salud , Humanos , Administración en Salud Pública/métodos , Sexo SeguroRESUMEN
Sex work remains an important contributor to HIV transmission within early, advanced and regressing epidemics in sub-Saharan Africa, but its social and behavioral underpinnings remain poorly understood, limiting the impact of HIV prevention initiatives. This article systematically reviews the socio-demographics of female sex workers (FSW) in this region, their occupational contexts and key behavioral risk factors for HIV. In total 128 relevant articles were reviewed following a search of Medline, Web of Science and Anthropological Index. FSW commonly have limited economic options, many dependents, marital disruption, and low education. Their vulnerability to HIV, heightened among young women, is inextricably linked to the occupational contexts of their work, characterized most commonly by poverty, endemic violence, criminalization, high mobility and hazardous alcohol use. These, in turn, predict behaviors such as low condom use, anal sex and co-infection with other sexually transmitted infections. Sex work in Africa cannot be viewed in isolation from other HIV-risk behaviors such as multiple concurrent partnerships-there is often much overlap between sexual networks. High turn-over of FSW, with sex work duration typically around 3 years, further heightens risk of HIV acquisition and transmission. Targeted services at sufficiently high coverage, taking into account the behavioral and social vulnerabilities described here, are urgently required to address the disproportionate burden of HIV carried by FSW on the continent.
Asunto(s)
Seropositividad para VIH/epidemiología , Trabajadores Sexuales/estadística & datos numéricos , Conducta Sexual/estadística & datos numéricos , Adulto , África del Sur del Sahara/epidemiología , Femenino , Seropositividad para VIH/transmisión , Humanos , Factores de Riesgo , Asunción de Riesgos , Factores Socioeconómicos , Sexo InseguroRESUMEN
In 2005; the WHO Regional Committee for Africa called upon countries to accelerate HIV prevention and to declare 2006 as the Year of Acceleration of HIV Prevention in the African Region. The strategy document that was developed by WHO Regional Office was adopted by the Region's ministers of health in August 2006. The strategy proposed targets to be met by 2010; in line with universal access targets; in areas of HIV testing and counselling; prevention of mother-to-child transmission of HIV; prevention and control of sexually-transmitted infections; blood safety; and access to comprehensive prevention; treatment and care. Specifically; it was envisaged that; by 2010; all districts will provide HIV testing and counselling services; 100100 safe blood and blood products will be ensured; at least 80of pregnant women attending antenatal care will access prevention of mother-to-child transmission of HIV services; at least 80of patients with sexually-transmitted infections will access comprehensive STI management; at least 80of people living with HIV/AIDS will have access to comprehensive prevention; treatment and care services; and condom use in high-risk sexual encounters will reach at least 60. This paper describes the progress made in accelerating key health sector HIV prevention interventions in the Region toward these targets and issues that should be taken into consideration for moving forward the HIV prevention agenda in the health sector