Publications by authors named "Francesca Odhiambo"

Article Synopsis
  • Following a decline in perinatal HIV transmission rates in Kenya from 20% to 8% between 2010 and 2021, the FACES program aimed to further reduce these rates by supporting HIV care for pregnant and postpartum women at 61 facilities in Kisumu County.
  • The program implemented three specific interventions in 2019, including high-risk clinics, case management, and a mobile app, to enhance support for women and their infants, while monitoring infant HIV acquisition up to 24 months.
  • Data collected from over 12,000 women and nearly 12,000 mother-infant pairs showed a focus on understanding the impact of these interventions on HIV transmission rates, with a particular emphasis on comparing outcomes
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Article Synopsis
  • Routine HIV viral load testing is crucial for assessing treatment outcomes, but traditional methods face challenges like high costs and slow result delivery.
  • The GeneXpert HIV-1 quantification assay is a potential solution, offering faster and cheaper point-of-care testing, although its real-world effectiveness is still under review.
  • Analysis of 900 samples from studies in Kenya shows that GeneXpert performs well in terms of specificity and agreement with standard testing but has lower sensitivity, indicating that while it could be a reliable monitoring tool, further investigation is needed to ensure accurate results.
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Introduction: Lack of viral suppression (VS) among pregnant and breastfeeding women living with HIV poses challenges for maternal and infant health, and viral load (VL) monitoring via centralized laboratory systems faces many barriers. We aimed to determine the impact of point-of-care (POC) VL and targeted drug resistance mutation (DRM) testing in improving VS among pregnant and postpartum women on antiretroviral therapy.

Methods: We conducted a pre/post-intervention prospective cohort study among 820 pregnant women accessing HIV care at five public-sector facilities in western Kenya from 2019 to 2022.

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Background: Pregnant women and children living with HIV in Kenya achieve viral suppression (VS) at lower rates than other adults. While many factors contribute to these low rates, the acquisition and development of HIV drug resistance mutations (DRMs) are a contributing factor. Recognizing the significance of DRMs in treatment decisions, resource-limited settings are scaling up national DRM testing programs.

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Voluntary male medical circumcision (VMMC) reduces HIV acquisition by up to 60%. Kenya has successfully scaled up VMMC to an estimated 91% of eligible men and boys in certain regions in combination due to VMMC and cultural circumcisions. VMMC as a program is implemented regionally in traditionally non-circumcising counties where the prevalence is still below 91%, ranging from 56.

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We investigated the first 152 laboratory-confirmed SARS-CoV-2 cases (125 primary and 27 secondary) and their 248 close contacts in Kisumu County, Kenya. Conducted June 10-October 8, 2020, this study included interviews and sample collection at enrolment and 14-21 days later. Median age was 35 years (IQR 28-44); 69.

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Novel "differentiated service delivery" models for HIV treatment that reduce clinic visit frequency, minimize waiting time, and deliver treatment in the community promise retention improvement for HIV treatment in Sub-Saharan Africa. Quantitative assessments of differentiated service delivery (DSD) feature most preferred by patient populations do not widely exist but could inform selection and prioritization of different DSD models. We used a discrete choice experiment (DCE) to elicit patient preferences of HIV treatment services and how they differ across DSD models.

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Introduction: In 2020, Kenya had 19,000 new HIV infections among women aged 15+ years. Studies have shown sub-optimal oral pre-exposure prophylaxis (PrEP) use among sub-populations of women. We assessed the uptake and continuation of oral PrEP among women 15-49 years in two health facilities in Kisumu County, Kenya.

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Background: Viral suppression (VS) is a marker of effective HIV therapy, and viral load (VL) testing is critical for treatment monitoring, especially in high-risk groups such as children and pregnant/postpartum women. Although routine VL testing, via centralized laboratory networks, was implemented in Kenya starting in 2014, optimization and sustainable scale up of VL testing are still needed.

Methods: We conducted a mixed methods study to evaluate the impact of higher frequency, point-of-care (POC) VL testing in optimizing VS among children and pregnant/postpartum women on antiretroviral treatment (ART) in five HIV treatment facilities in western Kenya in the Opt4Kids and Opt4Mamas studies.

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Article Synopsis
  • The Opt4Kids study in Kenya aimed to improve viral suppression in HIV-positive children (aged 1-14) on antiretroviral therapy by testing point-of-care viral load and drug resistance mutation.* -
  • The study enrolled 704 children and randomly assigned them to either the intervention group (which received additional testing every 3 months) or standard care, with virological suppression measured 12 months later.* -
  • Results showed that at 12 months, virological suppression rates were similar between the intervention group (90%) and control group (92%), indicating no significant benefit of the additional testing in this context.*
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Introduction: Adolescents living with HIV are subject to multiple co-morbidities, including growth retardation and immunodeficiency. We describe growth and CD4 evolution during adolescence using data from the Collaborative Initiative for Paediatric HIV Education and Research (CIPHER) global project.

Methods: Data were collected between 1994 and 2015 from 11 CIPHER networks worldwide.

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Background: A better understanding why people living with HIV (PLHIV) become lost to follow-up (LTFU) and determining who is LTFU in a program setting is needed to attain HIV epidemic control.

Setting: This retrospective cross-sectional study used an evidence-sampling approach to select health facilities and LTFU patients from a large HIV program supporting 61 health facilities in Kisumu County, Kenya.

Methods: Eligible PLHIV included adults 18 years and older with at least 1 clinic visit between September 1, 2016, and August 31, 2018, and were LTFU (no clinical contact for ≥90 days after their last expected clinic visit).

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Background: Dolutegravir is being rolled out globally as part of preferred antiretroviral therapy (ART) regimens, including among treatment-experienced patients. The role of viral load (VL) testing before switching patients already on ART to a dolutegravir-containing regimen is less clear in real-world settings.

Methods: We included patients from the International epidemiology Databases to Evaluate AIDS consortium who switched from a nevirapine- or efavirenz-containing regimen to one with dolutegravir.

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  • Youth aged 15-24 in Kisumu County, Kenya account for 48% of new HIV infections and 15% of those living with HIV, highlighting a significant public health issue.
  • The Community Health Initiative (CHI) engaged over 4,400 youth in 2018 through health campaigns and home-based testing, revealing an overall HIV prevalence of 3.5%, with higher rates of 7.1% among young women aged 20-24.
  • Factors influencing HIV infection included being female and aged 20-24, whereas having a secondary school education or higher was linked to a lower risk of infection, indicating a need for targeted prevention programs for youth.
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Background: As many as 40% of the 1 million children living with HIV (CLHIV) receiving antiretroviral treatment (ART) in resource limited settings have not achieved viral suppression (VS). Kenya has a large burden of pediatric HIV with nearly 140,000 CLHIV. Feasible, scalable, and cost-effective approaches to ensure VS in CLHIV are urgently needed.

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Article Synopsis
  • In western Kenya, a hybrid HIV testing initiative aimed to improve awareness and diagnosis of HIV, particularly among men and youth, in an urban informal settlement.
  • Through community mapping, health campaigns, and home-based testing, the program successfully reached nearly 24,000 individuals, with a significant participation from men and young adults aged 15-24.
  • The study sought to identify the fraction of newly diagnosed individuals who were previously unaware of their HIV-positive status, thereby addressing UNAIDS targets and increasing testing saturation.
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: To ensure the continuity of high-quality HIV care in Kisumu County, Kenya during the corona virus disease 2019 pandemic, the Ministry of Health implemented a strategy to promote physical distancing and corona virus disease 2019 case detection. A total of 23 262 (84.2%) of the 27 641 patients eligible for early refill received an extra 3-month supply of antiretrovirals.

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A survey of 461 HIV-infected Kenyan children receiving antiretroviral therapy found 143 (31%) failing virologically. Drug resistance mutations were found in 121; 37 had L74V/I mutations, with 95% receiving abacavir (ABC)-containing regimens. L74V/I was associated with current ABC usage (P = 0.

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Cervical cancer is the second most common cancer among women worldwide. Infection with the human immunodeficiency virus (HIV) and its related immunosuppression are associated with an increased risk of prevalent, incident, and persistent squamous intraepithelial lesions (SILs) of the cervix. The objective of the study was to describe the prevalence and predictors of high-risk HPV and cervical cancer to support the need for strengthening cervical cancer screening programs for HIV infected women in Kenya.

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Objective. To assess the prevalence and identified associated risk factors for precancerous cervical cancer lesions among HIV-infected women in resource-limited settings in Kenya. Methods.

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