Youngji Jo
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Complex Network Analysis of Mobility Dynamics in Seoul During the COVID-19 Pandemic (2020–2022) Open
Background: Recent advances in geolocated data enable quantitative analysis of human mobility, critical for urban planning and epidemic control. This study examines mobility dynamics in Seoul during the COVID-19 pandemic, where minimal loc…
Dynamic Interactions of COVID-19 Incidences, Mobility, and Social Distancing Policies in Seoul: A VAR Model Approach Open
Background: COVID-19 incidence, mobility, and social distancing policies are interdependently linked, with the pathways and level of influence varying over time by region. Using weekly, district-specific time series data, we examined wheth…
View article: Integrated multi‐month dispensing for HIV and hypertension in South Africa: A model of epidemiological impact and cost‐effectiveness
Integrated multi‐month dispensing for HIV and hypertension in South Africa: A model of epidemiological impact and cost‐effectiveness Open
Introduction In the current era of universal antiretroviral treatment (ART), health systems have the dual challenge of a growing number of people living with HIV and on ART who are also receiving chronic, life‐long treatment for non‐commun…
The impact of human behavioral adaptation stratified by immune status on COVID-19 spread with application to South Korea Open
As the COVID-19 pandemic continues with ongoing variant waves and vaccination efforts, population-level immunity and public risk perceptions have shifted. This study presents a behavioral transmission model to assess how virus spread and c…
View article: Nationwide Target Trial Emulation Evaluating the Clinical Effectiveness of Oral Antivirals for COVID-19 in Korea
Nationwide Target Trial Emulation Evaluating the Clinical Effectiveness of Oral Antivirals for COVID-19 in Korea Open
Nirmatrelvir/ritonavir and molnupiravir are effective in preventing progression to severe disease in elderly adults with COVID-19.
Attrition from HIV treatment after enrollment in a differentiated service delivery model: A cohort analysis of routine care in Zambia Open
Background Many sub-Saharan Africa countries are scaling up differentiated service delivery (DSD) models for HIV treatment to increase access and remove barriers to care. We assessed factors associated with attrition after DSD model enroll…
View article: Cost-effectiveness of a direct to beneficiary mobile communication programme in improving reproductive and child health outcomes in India
Cost-effectiveness of a direct to beneficiary mobile communication programme in improving reproductive and child health outcomes in India Open
Introduction Kilkari is the largest maternal messaging programme of its kind globally. Between its initiation in 2012 in Bihar and its transition to the government in 2019, Kilkari was scaled to 13 states across India and reached over 10 m…
A Model-Based Cost-Effectiveness Analysis of Long-Acting Monoclonal Antibody (Tixagevimab and Cilgavimab: Evusheld) Preventive Treatment for High-Risk Populations Against SARS-CoV-2 in Korea Open
As the COVID-19 variants and risk group-specific durable efficacy, toxicity (and/or resistance) and optimal dosing of Evusheld remain uncertain, better empirical estimates to inform these values in different epidemiological contexts are ne…
Contribution of Reinfection to Annual Rate of Tuberculosis Infection (ARI) and Incidence of Tuberculosis Disease Open
Background Modeling studies have concluded that 60–80% of tuberculosis (TB) infections result from reinfection of previously infected persons. The annual rate of infection (ARI), a standard measure of the risk of TB infection in a communit…
Attrition from HIV treatment after enrollment in a differentiated service delivery model: a cohort analysis of routine care in Zambia Open
Background Many sub-Saharan Africa countries are scaling up differentiated service delivery (DSD) models for HIV treatment to increase access and remove barriers to care. We assessed factors associated with attrition after DSD model enroll…
Model-based cost-effectiveness analysis of oral antivirals against SARS-CoV-2 in Korea Open
OBJECTIVES: Many countries have authorized the emergency use of oral antiviral agents for patients with mild-to-moderate cases of coronavirus disease 2019 (COVID-19). We assessed the cost-effectiveness of these agents for reducing the numb…
Optimal Social Distancing Policy for COVID-19 Control in Korea: A Model-Based Analysis Open
In South Korea, given the relatively high vaccination coverage and low incidence, four or more months of social distancing enforcement can effectively mitigate epidemic resurgence after lifting the social distancing measures. In addition, …
Correction: The Potential of Digital Data Collection Tools for Long-lasting Insecticide-Treated Net Mass Campaigns in Nigeria: Formative Study (Preprint) Open
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Changes in HIV treatment differentiated care uptake during the COVID‐19 pandemic in Zambia: interrupted time series analysis Open
Introduction Differentiated service delivery (DSD) models aim to improve the access of human immunodeficiency virus treatment on clients and reduce requirements for facility visits by extending dispensing intervals. With the advent of the …
Costs and cost-effectiveness of a comprehensive tuberculosis case finding strategy in Zambia Open
Introduction Active-case finding (ACF) programs have an important role in addressing case detection gaps and halting tuberculosis (TB) transmission. Evidence is limited on the cost-effectiveness of ACF interventions, particularly on how th…
The Potential of Digital Data Collection Tools for Long-lasting Insecticide-Treated Net Mass Campaigns in Nigeria: Formative Study Open
Background Nigeria has the world’s largest malaria burden, accounting for 27% of the world’s malaria cases and 23% of malaria mortality globally. This formative study describes the operational process of the mass distribution of long-lasti…
mCARE, a digital health intervention package on pregnancy surveillance and care-seeking reminders from 2018 to 2027 in Bangladesh: a model-based cost-effectiveness analysis Open
Objective We estimated the cost-effectiveness of a digital health intervention package (mCARE) for community health workers, on pregnancy surveillance and care-seeking reminders compared with the existing paper-based status quo, from 2018 …
Changes in HIV Treatment Differentiated Care Utilization During the COVID-19 Pandemic in Zambia Open
Background Differentiated service delivery (DSD) models aim to lessen the burden of HIV treatment on patients and providers in part by reducing requirements for facility visits and extending dispensing intervals. With the advent of the COV…
Cost-effectiveness of Remdesivir and Dexamethasone for COVID-19 Treatment in South Africa Open
Background Dexamethasone and remdesivir have the potential to reduce coronavirus disease 2019 (COVID)–related mortality or recovery time, but their cost-effectiveness in countries with limited intensive care resources is unknown. Methods W…
View article: Cost-effectiveness of scaling up short course preventive therapy for tuberculosis among children across 12 countries
Cost-effectiveness of scaling up short course preventive therapy for tuberculosis among children across 12 countries Open
BACKGROUND: While household contact investigation is widely recommended as a means to reduce the burden of tuberculosis (TB) among children, only 27% of eligible pediatric household contacts globally received preventive treatment in 2018. …
Sub-district level correlation between tuberculosis notifications and socio-demographic factors in Dhaka City corporation, Bangladesh Open
We developed a novel method to align two data sources (TB notifications and the Demographic Health Survey, DHS) captured at different geographic scales. We used this method to identify sociodemographic indicators – specifically population …
Serological testing in addition to PCR screening for the re-opening of American colleges and universities: potential for cost-savings without compromising pandemic mitigation Open
Importance The addition of a serological testing could reduce the overall testing costs of a PCR-based SARS-CoV-2 testing reopening plan for colleges/universities in the United States, without compromising the efficacy of the testing plan.…
Cost‐effectiveness of a 12 country‐intervention to scale up short course TB preventive therapy among people living with HIV Open
Introduction In 2017, the Aurum Institute, with support from Unitaid, launched an initiative to expand short‐course therapy for the prevention of tuberculosis (TB) in 12 high‐burden countries. This study aimed to investigate the importance…
Cost‐effectiveness of one month of daily isoniazid and rifapentine versus three months of weekly isoniazid and rifapentine for prevention of tuberculosis among people receiving antiretroviral therapy in Uganda Open
Introduction Preventive therapy is essential for reducing tuberculosis (TB) burden among people living with HIV (PLWH) in high‐burden settings. Short‐course preventive therapy regimens, such as three‐month weekly rifapentine and isoniazid …
Cost-effectiveness of remdesivir and dexamethasone for COVID-19 treatment in South Africa Open
Background South Africa recently experienced a first peak in COVID-19 cases and mortality. Dexamethasone and remdesivir both have the potential to reduce COVID-related mortality, but their cost-effectiveness in a resource-limited setting w…