Publications by authors named "Lelia H Chaisson"

Objectives: Worldwide, adult men experience an excess burden of tuberculosis (TB) disease compared with women, but few studies have examined sex differences in TB among people with HIV. In this study, we aimed to investigate sex differences in TB infection and disease among people with HIV in Rio de Janeiro, Brazil.

Design: Analysis of data from a randomized controlled trial and retrospective cohort study.

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COVID-19 therapies were challenging to deploy due to evolving literature and conflicting guidelines. Antimicrobial stewardship can help optimize drug use. We conducted a survey to understand the role of stewardship and formulary restrictions during the pandemic.

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Article Synopsis
  • Active case finding (ACF) is an important way to find people with tuberculosis (TB) in India, but there are many different methods and challenges.
  • Researchers looked at studies from 2010 to 2020 to understand how effective these methods were for different groups of people, where people were screened, and how many people dropped out of the process.
  • They found that the method worked best for certain groups like people with HIV and those living in rural areas, but also noticed some people didn’t follow through with tests after being screened.
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Background/objective: The University of Illinois at Chicago (UIC), along with many academic institutions worldwide, made significant efforts to address the many challenges presented during the COVID-19 pandemic by developing clinical staging and predictive models. Data from patients with a clinical encounter at UIC from July 1, 2019 to March 30, 2022 were abstracted from the electronic health record and stored in the UIC Center for Clinical and Translational Science Clinical Research Data Warehouse, prior to data analysis. While we saw some success, there were many failures along the way.

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Deploying therapeutics for coronavirus disease 2019 (COVID-19) has proved challenging due to evolving evidence, supply shortages, and conflicting guideline recommendations. We conducted a survey on remdesivir use and the role of stewardship. Use differs significantly from guidelines.

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Context: Improving detection of pediatric tuberculosis (TB) is critical to reducing morbidity and mortality among children.

Objective: We conducted a systematic review to estimate the number of children needed to screen (NNS) to detect a single case of active TB using different active case finding (ACF) screening approaches and across different settings.

Data Sources: We searched 4 databases (PubMed, Embase, Scopus, and the Cochrane Library) for articles published from November 2010 to February 2020.

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Tuberculosis (TB) causes 1 in 3 deaths among people living with HIV (PLHIV). Diagnosing and treating latent tuberculosis infection (LTBI) is critical to reducing TB incidence and mortality. Blood-based screening tests (e.

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Objective: We aimed to evaluate safety of 3 months weekly isoniazid-rifapentine (3HP) for tuberculosis (TB) prevention when co-administered with dolutegravir-based antiretroviral therapy (TLD), and compare viral suppression among those initiating TLD + 3HP vs. TLD alone.

Design/methods: We analyzed data from an ongoing Phase 3 randomized trial comparing TB screening strategies among adults with CD4 + ≤350 cells/μl initiating routine antiretroviral therapy (ART) in Kampala, Uganda.

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Article Synopsis
  • The study aimed to evaluate how common severe liver enzyme elevation (transaminitis) is in people with HIV in Uganda who are being screened for tuberculosis (TB) preventive therapy.
  • Out of 313 participants, only 2% had severe transaminitis, with no cases found among individuals screening negative for TB by symptoms.
  • The findings suggest that severe transaminitis is rare in this population, indicating that it is not a significant obstacle to increasing TB preventive therapy in people living with HIV.
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Background: People living with HIV (PLHIV) have an increased risk of developing active tuberculosis (TB). To reduce the burden of TB among PLHIV, the World Health Organization (WHO) recommends systematic TB screening followed by (1) confirmatory TB testing for all who screen positive and (2) TB preventive therapy (TPT) for all TPT-eligible PLHIV who screen negative. Symptom-based screening remains the standard of care in most high TB burden settings, including Uganda.

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Article Synopsis
  • * In a study of 106 maternal syphilis cases from 2014 to 2018, it was found that 11% resulted in congenital syphilis, with significant factors including psychiatric issues and substance use impacting pregnancy outcomes.
  • * The findings suggest that barriers like late prenatal care and delayed treatment require focused public health interventions, particularly for women facing mental health challenges or substance use, to enhance care and prevent congenital transmission.
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Community-based active case-finding (ACF) may have important impacts on routine TB case-detection and subsequent patient-initiated diagnosis pathways, contributing "indirectly" to infectious diseases prevention and care. We investigated the impact of ACF beyond directly diagnosed patients for TB, using routine case-notification rate (CNR) ratios as a measure of indirect effect. We systematically searched for publications 01-Jan-1980 to 13-Apr-2020 reporting on community-based ACF interventions compared to a comparison group, together with review of linked manuscripts reporting knowledge, attitudes, and practices (KAP) outcomes or qualitative data on TB testing behaviour.

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Objectives: In Brazil, annual tuberculin skin tests (TSTs) are recommended for people living with HIV (PLWH) with CD4 >350, with tuberculosis preventive therapy provided on test conversion. We aimed to determine the yield of repeat TSTs for PLWH.

Design: Secondary analysis of the stepped-wedge, cluster-randomized THRio trial for isoniazid preventive therapy (IPT) to prevent tuberculosis (TB).

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Article Synopsis
  • Researchers analyzed data from US health agencies to compare COVID-19 case fatality rates in homeless individuals versus the general population.
  • The study found that the fatality rate for homeless people was 1.3 times higher than that of the general public.
  • This indicates a need for prioritizing vaccinations for individuals experiencing homelessness.
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Background: Community-based active case-finding interventions might identify and treat more people with tuberculosis disease than standard case detection. We aimed to assess whether active case-finding interventions can affect tuberculosis epidemiology in the wider community.

Methods: We did a systematic review by searching PubMed, Embase, Scopus, and Cochrane Library for studies that compared tuberculosis case notification rates, tuberculosis disease prevalence, or tuberculosis infection prevalence or incidence in children, between populations exposed and unexposed to active case-finding interventions.

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Background: Outbreaks of coronavirus disease 2019 (COVID-19) have been reported in nursing homes and assisted living facilities; however, the extent of asymptomatic and presymptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in this high-risk population remains unclear.

Methods: We conducted an investigation of the first known outbreak of SARS-CoV-2 at a skilled nursing facility (SNF) in Illinois on 15 March 2020 and followed residents for 30 days. We tested 126/127 residents for SARS-CoV-2 via reverse-transcription polymerase chain reaction and performed symptom assessments.

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Objectives: In 2018, Brazilian guidelines changed to recommend tuberculosis (TB) preventive therapy for all people with HIV and a CD4 cell count 350 cells/μl or less, but only for those with a positive tuberculin skin test (TST) if CD4 cell count is than 350 cells/μl. We determined the potential effectiveness of CD4-based guidelines for TB testing and preventive therapy.

Design: Secondary analysis of the stepped-wedge, cluster-randomized THRio trial for isoniazid preventive therapy (IPT).

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Background: Diphtheria, once a major cause of childhood morbidity and mortality, all but disappeared following introduction of diphtheria vaccine. Recent outbreaks highlight the risk diphtheria poses when civil unrest interrupts vaccination and healthcare access. Lack of interest over the last century resulted in knowledge gaps about diphtheria's epidemiology, transmission, and control.

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Objectives: In resource-limited settings, mortality in the initial months following antiretroviral therapy (ART) initiation remains unacceptably high. Novel tools to identify patients at highest risk of poor outcomes are needed. We evaluated whether elevated C-reactive protein (CRP) concentrations predict poor outcomes among people living with HIV (PLWH) initiating ART.

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Background: Approaches to screening for active tuberculosis (TB) among people living with HIV are inadequate, leading to missed diagnoses and poor implementation of preventive therapy.

Methods: Consecutive HIV-infected adults hospitalized at Mulago Hospital (Kampala, Uganda) between June 2011 and July 2013 with a cough ≥ 2 weeks were enrolled. Patients underwent extensive evaluation for pulmonary TB.

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Article Synopsis
  • New guidelines suggest using molecular testing instead of traditional sputum-smear microscopy to help end respiratory isolation for patients being tested for active tuberculosis (TB).
  • This study involved 621 patients at Zuckerberg San Francisco General Hospital, analyzing the effectiveness of a new molecular testing strategy over two years.
  • Results showed that after implementing this strategy, a higher percentage of patients received and completed molecular tests, with the new testing method demonstrating accurate diagnoses compared to older culture methods.
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Article Synopsis
  • The study focuses on improving tuberculosis (TB) screening methods for high-risk groups, utilizing a multiplex microbead immunoassay to measure antibody responses to specific M. tuberculosis antigens.* -
  • Researchers analyzed plasma samples from HIV-negative adults with prolonged cough, finding significant differences in antibody levels between those with and without confirmed TB.* -
  • A specific panel of eight antigens showed high sensitivity (90.6%) and good specificity (88.6%) for detecting TB, indicating that antibody response measurements could enhance screening efforts in targeted populations.*
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