Publications by authors named "Farquhar Carey"

Sexual and/or injecting partners of people who inject drugs (PWID) may have an elevated risk of HIV infection either from sharing a transmission network or an epidemiological environment. We estimated the degree of similarity between HIV and hepatitis C (HCV) sequences from PWID and their partners to assess whether partner-based recruitment identifies sexual or injecting partners within transmission networks. We used assisted partner services (APS) to recruit sexual and injecting partners of PWID living with HIV in Kenya and evaluated trends in the TN93 distances (an adjusted measure of sequence similarity) of the HIV-1 and HCV sequences from partner pairs.

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Although recent modeling suggests that needle-syringe programs (NSPs) have reduced parenteral HIV transmission among people who inject drugs (PWID) in Kenya, the prevalence in this population remains high (∼14-20%, compared to ∼4% in the larger population). Reducing transmission or acquisition requires understanding historic and modern transmission trends, but the relationship between the PWID HIV-1 sub-epidemic and the general epidemic in Kenya is not well understood. We incorporated 303 new (2018-21) HIV-1 sequences from PWID and their sexual and injecting partners with 2666 previously published Kenyan HIV-1 sequences to quantify relative rates and direction of HIV-1 transmissions involving PWID from the coast and Nairobi regions of Kenya.

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Integrating HIV self-testing (HIVST) into assisted partner services (APS) has potential to increase identification of people with HIV in the community, but little is known about acceptability of HIVST among partners traced via APS. We assessed characteristics of APS partners testing with HIVST, and factors influencing HIVST uptake and acceptability in a cluster-randomized control trial on APS+HIVST. Using convergent parallel mixed-methods design, we evaluated socio-demographic and behavioral characteristics of APS partners who were offered HIVST or provider-delivered testing, and purposively selected a sub-set of partners for in-depth interviews (IDIs).

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Despite having a higher risk of hepatitis C virus (HCV) infections, people who inject drugs (PWID) in sub-Saharan Africa (SSA) have limited access to HCV treatment. There is scarce literature on treatment delivery modalities that overcome logistical and financial barriers. We utilized different service delivery modalities to provide direct-acting antivirals (DAAs) to PWIDs infected with HCV through methadone clinics and needle and syringe program (NSP) sites in Kenya.

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In Kenya, persons insufficiently engaged in HIV Testing Services (HTS) are often treated in emergency departments (ED). There are limited data from healthcare workers on ED-HTS. A qualitative study was completed to understand challenges and facilitators for ED-HTS and HIV self-testing (HIVST).

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Assisted partner services (APS) is a recommended public health approach to promote HIV testing for sexual partners of individuals diagnosed with HIV. We evaluated the cost and cost-effectiveness of integrating oral HIV self-testing (HIVST) into existing APS programs. Within the APS-HIVST study conducted in western Kenya (2021-2022), we conducted micro-costing, time-and-motion, and provider surveys to determine incremental HIVST distribution cost (2022 USD).

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Background: Assisted partner services (APS) is an effective strategy for testing people with undiagnosed HIV, but there is limited information on the relative reach and effectiveness of phone versus in-person contact.

Methods: We analyzed data from 31 facilities in Western Kenya providing APS to female index clients newly HIV diagnosed, their male partners, and female partners of men newly HIV diagnosed. Assisted partner services providers attempted contacting partners using phone first and, if unsuccessful, in-person in the community.

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Article Synopsis
  • The study focuses on the HEATED program implemented in the emergency department at Kenyatta National Hospital in Nairobi, aimed at improving HIV testing services among high-risk populations.
  • It utilized a multi-faceted approach involving training, reorganization of resources, and advocacy to enhance HIV care integration in emergency settings.
  • Preliminary results showed an increase in HIV testing rates among emergency department patients, rising from 16.7% before implementation to a higher percentage post-implementation.
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Background: Incentives have shown mixed results in increasing HIV testing rates in low-resource settings. We investigated the effectiveness of offering additional self-tests (HIVSTs) as an incentive to increase testing among partners receiving assisted partner services (APS).

Setting: Western Kenya.

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Introduction: Assisted partner services (APS), or exposure notification and HIV testing for sexual partners of persons diagnosed HIV positive (index clients), is recommended by the World Health Organization. Most APS literature focuses on outcomes among index clients and their partners. There is little data on the benefits of providing APS to partners of partners diagnosed with HIV.

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Introduction: Assisted partner services (APS) is an effective strategy for increasing HIV testing, new diagnosis, and linkage to care among sexual partners of people living with HIV (PLWH). APS can be resource intensive as it requires community tracing to locate each partner named and offer them testing. There is limited evidence for the effectiveness of offering HIV self-testing (HIVST) as an option for partner testing within APS.

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In Kenya, overdose remains a major public health concern with approximately 40% of persons who inject drugs (PWID) reporting personal overdoses. PWID living with HIV (PWID-LH) are particularly vulnerable to experiencing fatal and non-fatal overdoses because of the surrounding physical, social, economic, and political environments, which are not fully understood in Kenya. Through qualitative inquiry, this study characterizes Kenya's overdose risk environment.

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Interprofessional (IP) education is imperative to foster collaboration within and between healthcare professions to improve healthcare delivery and outcomes. Increasing the capacity of health professions faculty to effectively deliver learning about IP knowledge and skills fosters sustainability of IP care in health systems. This short report describes a series of three virtual IP faculty development workshops during 2020-2021 that used a Train-the-Trainer approach and adopted flexible and context-specific teaching methods to enhance learning.

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Article Synopsis
  • - The HEATED program in Nairobi, Kenya, aims to improve HIV testing in emergency departments for underserved populations, including key and priority populations vulnerable to HIV.
  • - A quasi-experimental study showed a significant increase in HIV testing services, with provider reach going from 16.7% to 23.0% and patient testing rising from 5.7% to 62.3% after program implementation.
  • - The training of 151 clinical staff and increased availability of self-test kits contributed to a 62.9% rise in the provision of HIV self-test kits post-implementation, indicating a successful integration of testing services within the emergency care setting.
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Background: People who inject drugs are at increased risk of both HIV and hepatitis C virus (HCV) infections but face barriers to testing and engagement in care. Assisted partner services are effective in locating people with HIV but are understudied among people who inject drugs. We assessed whether assisted partner services could be used to find, test for HIV and HCV infections, and link to care the partners of people who inject drugs in Kenya.

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Background: Nontoxigenic Corynebacterium diphtheriae, often associated with wounds, can rarely cause infective endocarditis (IE). Five patients with C. diphtheriae IE were identified within 12 months at a Seattle-based hospital system.

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Objectives: To examine the long-term impact of large-scale training targeting midwives in a setting where they are the main female genital mutilation (FGM) practitioners. We hypothesised that trained midwives would have significantly higher knowledge, greater opposition to midwives' involvement in this practice, and improved clinical practice in FGM prevention and care compared with non-trained midwives.

Design: We conducted an exposure based cross-sectional study, using closed-ended and open-ended questions during phone interviews.

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We evaluated the prevalence and correlates of HIV viral nonsuppression and HIV drug resistance (HIV-DR) in a cohort of people who inject drugs living with HIV (PWID-LH) and their sexual and injecting partners living with HIV in Kenya. HIV-DR testing was performed on participants with viral nonsuppression. Of 859 PWID-LH and their partners, 623 (72.

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Article Synopsis
  • People living with HIV (PLWH) have a higher risk of hypertension, and HIV assisted partner services (aPS) can integrate HIV and hypertension screenings effectively.
  • A study at Kenyatta National Hospital involved 100 women with confirmed hypertension who were helped to refer their male relatives for screening, resulting in 58 men enrolling in the study.
  • Results showed significant health improvements for the women, including reduced blood pressure and increased use of antihypertensive medications, while the men showed a rise in medication uptake as well.
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Background: In Kenya, violence is common among people who inject drugs (PWID) living with HIV and their sexual and injecting partners and may lead to decreased uptake of HIV services, increased HIV risk behaviors, and increased HIV transmission. Violence is defined as any physical harm, threatened harm, or forced sexual acts inflicted on a person in the past year. Understanding the nature of violence and its correlates among PWID and their partners will inform population-specific public health interventions and policy recommendations.

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Article Synopsis
  • Studying HIV transmission in infants helps us understand how antibodies passed from mothers can affect HIV outcomes and disease progression.
  • Research using specialized tests showed that infants who developed antibodies to a specific part of the HIV virus (C5) had better survival rates in two different groups.
  • The findings indicate that having these specific antibodies may improve survival and slow down the virus's impact, highlighting the need for further research on their protective effects.
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Objectives: To explore the facilitators and barriers that affected the design and implementation of the first 3 years of Sudan's largest health programme on female genital mutilation (FGM).

Design: We used a qualitative case study guided by the Consolidated Framework for Implementation Research to conduct in-depth interviews with programme managers and for thematic data analysis.

Setting: About 14 million girls and women in Sudan are affected by FGM, which is mainly performed by midwives (77%).

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Introduction: Assisted partner services (APS), or notification for sexual partners of people diagnosed with HIV, is an efficient, effective, and high yield strategy to identify people living with HIV and is recommended by the World Health Organization (WHO). However, there remains a need to further understand the acceptability of APS qualitatively from a client lens, particularly when APS is integrated into the national health system. We investigated acceptability of APS when integrated into HIV services in Kenya.

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Background: HIV assisted partner services (aPS) is an intervention to improve HIV status awareness among sex and drug-injecting partners of people newly diagnosed with HIV (index clients). Implementation fidelity-the degree to which an intervention is conducted as intended - is critical to effectiveness, but there are limited data about aPS fidelity when delivered by HIV testing service (HTS) providers. We explored factors affecting implementation fidelity to aPS in two high-HIV prevalence counties in western Kenya.

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