Publications by authors named "Sue Napierala-Mavedzenge"

Background: Couples' HIV testing and counselling (CHTC) is associated with greater engagement with HIV prevention and care than individual testing and is cost-effective, but uptake remains suboptimal. Initiating discussion of CHTC might result in distrust between partners. Offering incentives for CHTC could change the focus of the pre-test discussion.

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Promoting awareness of serostatus and frequent HIV testing is especially important among high risk populations such as female sex workers (FSW) and their sexual partners. HIV self-testing is an approach that is gaining ground in sub-Saharan Africa as a strategy to increase knowledge of HIV status and promote safer sexual decisions. However, little is known about self-test distribution strategies that are optimal for increasing testing access among hard-to-reach and high risk individuals.

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Evidence demonstrates a substantial HIV epidemic among children and adolescents in countries with long-standing generalized HIV epidemics, where availability of prevention of mother-to-child transmission services has historically been limited. The objective of this research was to explore factors associated with antiretroviral therapy (ART) initiation and morbidity among HIV-infected surviving children 2-17 years of age attending HIV programs in Central Africa. Programmatic data from 404 children attending HIV programs in Burundi, Cameroon, and the Democratic Republic of Congo (DRC) were included in our evaluation.

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Introduction: Female sex workers (FSW) in sub-Saharan Africa have a higher prevalence of HIV than other women of reproductive age. Social, legal, and structural barriers influence their access to care. Little is known about the HIV diagnosis and care cascade in most countries in Southern Africa.

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Background: Achieving higher rates of partner HIV testing and couples testing among pregnant and postpartum women in sub-Saharan Africa is essential for the success of combination HIV prevention, including the prevention of mother-to-child transmission. We aimed to determine whether providing multiple HIV self-tests to pregnant and postpartum women for secondary distribution is more effective at promoting partner testing and couples testing than conventional strategies based on invitations to clinic-based testing.

Methods And Findings: We conducted a randomized trial in Kisumu, Kenya, between June 11, 2015, and January 15, 2016.

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Background: Increased uptake of HIV testing by men in sub-Saharan Africa is essential for the success of combination prevention. Self-testing is an emerging approach with high acceptability, but little evidence exists on the best strategies for test distribution. We assessed an approach of providing multiple self-tests to women at high risk of HIV acquisition to promote partner HIV testing and to facilitate safer sexual decision making.

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Background: In the context of a community-randomized trial of antiretrovirals for HIV prevention and treatment among sex workers in Zimbabwe (the SAPPH-IRe trial), we will measure the proportion of women with HIV viral load (VL) above 1000 copies/mL ("VL>1000") as our primary endpoint. We sought to characterize VL assay performance by comparing results from finger prick dried blood spots (DBS) collected in the field with plasma samples, to determine whether finger prick DBS is an acceptable sample for VL quantification in the setting.

Methods: We collected whole blood from a finger prick onto filter paper and plasma samples using venipuncture from women in two communities.

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Background: Studies have demonstrated that self-testing for human immunodeficiency virus (HIV) is highly acceptable among individuals and could allow cost savings, compared with provider-delivered HIV testing and counseling (PHTC), although the longer-term population-level effects are uncertain. We evaluated the cost-effectiveness of introducing self-testing in 2015 over a 20-year time frame in a country such as Zimbabwe.

Methods: The HIV synthesis model was used.

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Background: Mycoplasma genitalium is a common sexually transmitted infection associated with human immunodeficiency virus (HIV) infection. Some studies suggest that M. genitalium may increase the risk of HIV acquisition.

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HIV testing uptake has increased dramatically in recent years in resource limited settings. Nevertheless, over 50% of the people living with HIV are still unaware of their status. HIV self-testing (HIVST) is a potential new approach to facilitate further uptake of testing which requires consideration, taking into account economic factors.

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Background: In 2012, an estimated 2.1 million adolescents were living with HIV. Though there are effective interventions to prevent and treat HIV infection, adolescents face specific barriers in accessing them.

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Context: Contraceptive nonuse and misuse contribute to rates of unintended pregnancy and STDs among young women in the United States. Clinical providers assume an important role in guiding youths' contraceptive method choices.

Methods: Sixty-seven women aged 16-21 were recruited as part of a cohort study, conducted in 2009-2012, that examined provider-patient interactions during family planning visits at six San Francisco clinics.

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Inadequate uptake of testing for human immunodeficiency virus (HIV) remains a primary bottleneck toward universal access to treatment and care, and is an obstacle to realizing the potential of new interventions for preventing HIV infection, including treatment for prevention and preexposure prophylaxis. HIV self-testing offers an approach to scaling up testing that could be high impact, low cost, confidential, and empowering for users. Although HIV self-testing was first considered >20 years ago, it has not been widely implemented.

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Objectives: To describe the sexual and reproductive behaviour of adolescents in sub-Saharan Africa, particularly 15- to 19-year-olds.

Methods:  Using DHS/AIS data (2000-2010), nine indicators of adolescent behaviour and one of adult attitudes towards condom education for adolescents were described for 24 countries. Indicators were disaggregated by gender, urban/rural residency and educational status, and time trends were described.

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We developed and validated a real-time quantitative polymerase chain reaction (qPCR) assay to determine Mycoplasma genitalium bacterial load in endocervical swabs, based on amplification of the pdhD gene which encodes dihydrolipoamide dehydrogenase, using the Rotor-Gene platform. We first determined the qPCR assay sensitivity, limit of detection, reproducibility and specificity, and then determined the ability of the qPCR assay to quantify M. genitalium in stored endocervical specimens collected from Zimbabwean women participating in clinical research undertaken between 1999 and 2007.

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Objective: Mycoplasma genitalium is an emerging sexually transmitted infection (STI) and has been associated with reproductive tract infections and HIV in cross-sectional studies. In this longitudinal study, we assess whether M. genitalium is associated with risk of acquiring HIV-1 infection.

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Purpose: To systematically review and update evidence on the effectiveness of youth HIV/AIDS prevention interventions in sub-Saharan Africa (SSA) and to make evidence-based policy recommendations to guide efforts toward meeting the United Nations General Assembly Special Session HIV/AIDS goals.

Methods: Recent evidence (January 2005-December 2008) on the effectiveness of interventions to improve reported sexual behavior and biological outcomes among youth in SSA was assessed using the Steady, Ready, Go! (SRG) approach and synthesized with an earlier SRG review (January 1990-June 2005).

Results: A total of 23 studies were included following screening of approximately 1,200 citations.

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Background: Broad patterns of HIV epidemiology are frequently used to design generic HIV programs in sub-Saharan Africa.

Methods: We reviewed the epidemiology of HIV among young people in sub-Saharan Africa, and explored the unique dynamics of infection in its different regions.

Results: In 2009, HIV prevalence among youth in sub-Saharan Africa was an estimated 1.

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Background: HIV/AIDS related stigma is a major barrier to uptake of HIV testing and counselling (HTC). We assessed the extent of stigmatising attitudes expressed by participants offered community-based HTC, and their anticipated stigma from others to assess relationship with HIV test uptake. From these data, we constructed a brief stigma scale for use around the time of HIV testing.

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Background: Although HIV testing and counseling (HTC) uptake has increased dramatically in Africa, facility-based services are unlikely to ever meet ongoing need to the full. A major constraint in scaling up community and home-based HTC services is the unacceptability of receiving HTC from a provider known personally to prospective clients. We investigated the potential of supervised oral HIV self-testing from this perspective.

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Introduction: We explored factors associated with differential HIV incidence among women participating in a HIV prevention trial in Harare, Durban, and Johannesburg. The trial had shown no effect of the intervention (diaphragm and lubricant gel) on HIV incidence.

Methods: A prospective cohort analysis was conducted of trial participants followed for 12-24 months.

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Background: Trichomonas vaginalis (T. vaginalis) is the most common nonviral sexually transmitted infection in the world. Despite the coexisting global epidemics of T.

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Objective: To systematically review studies of Mycoplasma genitalium and the association with HIV infection in adults and to summarize the findings in a meta-analysis.

Design: A systematic review and meta-analysis.

Methods: Epidemiological studies of the association of M.

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