Publications by authors named "Siamba S"

Introduction: Paediatric tuberculosis (TB) underdiagnosis is a critical concern. The INPUT stepped-wedge cluster-randomised trial assessed the impact of integrating child TB services into child healthcare on TB case detection among children under age 5 years.

Methods: We compared the standard of care, providing TB care in specific TB clinics (control phase), with the Catalysing Paediatric TB Innovations (CaP-TB) intervention, integrating TB services across all child health services (intervention phase).

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Mass testing with antigen-detecting rapid diagnostic tests (Ag-RDT), including testing of asymptomatic individuals, is expected to improve the identification of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infections. Mass testing was offered at large gatherings to determine the SARS-CoV-2 case detection rate and the acceptance and cost of implementing this community testing strategy. In 49 high-attendance venues in Kiambu County, Kenya, from June to September 2022, individuals 2 years and older were offered coronavirus disease 2019 (COVID-19) testing, vaccination, and participation in a survey.

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Article Synopsis
  • * A study analyzed data from 6,649 AHD clients out of 19,427 HIV-positive individuals across eight facilities, focusing on demographics, clinical stages, and care settings, revealing that 56% of the participants were female and the median age was 46.0 years.
  • * The results indicated significant differences between treatment-naïve and treatment-experienced clients, with ART-experienced patients more likely to visit primary care facilities and present with advanced clinical stages, and they also experienced higher mortality or loss to follow-up rates
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Background: Children under age five years, particularly those living with HIV (CLHIV), are at risk for rapid progression of tuberculosis (TB). We aimed to describe TB clinical presentations, diagnostic pathways and treatment outcomes in CLHIV compared to children without HIV in Cameroon and Kenya.

Methods: This sub-analysis of a cluster-randomized trial evaluating the integration of pediatric TB services from May 2019 to March 2021 enrolled children age < 5 years with TB.

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Despite large numbers of patients accessing antiretroviral treatment (ART) in Kenya, few studies have explored factors associated with virologic failure in Western Kenya, specifically. We undertook a study in Homa Bay County, Kenya to assess the extent of virologic treatment failure and factors associated with it. This was an observational retrospective study conducted from September 2020 to January 2021.

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In Kenya, HIV/AIDS remains a leading cause of morbidity and mortality among adolescents living with HIV (ALHIV). Our study evaluated associations between demographic and healthcare factors and HIV treatment outcomes among ALHIV in care in Kenya. This retrospective cohort study evaluated the clinical outcomes of newly diagnosed ALHIV enrolled in HIV care during January 2017-June 2018 at 32 healthcare facilities in Homabay and Kakamega Counties.

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Tuberculosis (TB) infections among children (below 15 years) is a growing concern, particularly in resource-limited settings. However, the TB burden among children is relatively unknown in Kenya where two-thirds of estimated TB cases are undiagnosed annually. Very few studies have used Autoregressive Integrated Moving Average (ARIMA), and hybrid ARIMA models to model infectious diseases globally.

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Article Synopsis
  • Viral suppression among children and adolescents on antiretroviral therapy in Kenya was found to be inadequate, prompting the implementation of a standardized enhanced adherence counseling (SEAC) package aimed at improving outcomes in those suspected of treatment failure.
  • The SEAC package included training for providers, mentorship for peer educators, and individualized care, and it resulted in a significant reduction in time to initiate counseling and complete sessions post-implementation.
  • The study showed a notable increase in the percentage of clients completing the recommended counseling sessions, with 88.4% post-SEAC compared to only 61.1% pre-SEAC, demonstrating the effectiveness of the intervention.
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