Resources Repository
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ArticlePublication 2017Likelihood Approach for Calibration of Stochastic Epidemic Models
Stochastic transmission dynamic models are especially useful for studying the early emergence of novel pathogens …
Stochastic transmission dynamic models are especially useful for studying the early emergence of novel pathogens given the importance of chance events when the number of infectious individuals is small. However, methods for parameter estimation and prediction for these types of stochastic models remain limited. This paper describes a calibration and prediction framework for stochastic compartmental transmission models of epidemics. The proposed method applies a linear noise approximation to describe the size of the fluctuations, and…
Dynamic Simulation | Calibration/Validation | Global | Dynamic Transmission | Infectious Diseases | Health Systems | Health/Medicine -
ArticlePublication 2016Funding Gap for Immunization Across 94 Low- and Middle-Income Countries
This analysis estimates immunization program costs, potentially available financing, and resulting funding gap for 94 …
This analysis estimates immunization program costs, potentially available financing, and resulting funding gap for 94 low- and middle-income countries over the five-year period of 2016–2020. Vaccine financing by country governments, GAVI, and other development sources was forecasted for vaccine, supply chain, and service delivery based on an analysis of comprehensive multi-year plans together with a series of scenarios. The authors found that that delivery of full vaccination programs across the 94 countries would result in a total…
Mathematical Models | Cost-Effectiveness Analysis | Middle East & North Africa | Costing Methods | Infectious Diseases | Health Systems | Global Governance | Economics/Finance | Health/Medicine | Sub-Saharan Africa | Latin America & Caribbean | Asia & Pacific -
ArticlePublication 2013Estimated Mortality Impact of Vaccinations 2011–2020 in 73 GAVI Alliance Countries
From August to December 2011, a multidisciplinary group with expertise in mathematical modeling was constituted …
From August to December 2011, a multidisciplinary group with expertise in mathematical modeling was constituted by the GAVI Alliance and the Bill & Melinda Gates Foundation to estimate the impact of vaccination in 73 countries supported by the GAVI Alliance. The number of deaths averted in persons projected to be vaccinated during 2011–2020 was estimated for ten antigens: hepatitis B, yellow fever, Haemophilus influenzae type B (Hib), Streptococcus pneumoniae, rotavirus, Neisseria meningitidis serogroup A, Japanese…
Mathematical Models | State-Transition | Middle East & North Africa | Health Outcomes | Dynamic Transmission | Microsimulation | Infectious Diseases | Global Governance | Economics/Finance | Health/Medicine | Science/Technology | Sub-Saharan Africa | Latin America & Caribbean | Asia & Pacific -
ArticlePublication 2011Dynamic Policies for Controlling Spread of Emerging Infections
This paper illustrates the design and implementation of a dynamic health policy for the control …
This paper illustrates the design and implementation of a dynamic health policy for the control of a novel strain of influenza, where two types of interventions are assumed to be available during the epidemic: (1) vaccines and antiviral drugs, and (2) transmission reducing measures, such as social distancing or mask use, that may be turned "on" or "off" repeatedly during the course of epidemic. A modeling approach is described for developing dynamic health policies that allow…
Dynamic Simulation | Mathematical Models | Global | Dynamic Transmission | Infectious Diseases | Health Systems | Policy/Regulation | Health/Medicine | Science/Technology -
ArticlePublication 2023Simulation-Based Estimates and Projections of Global, Regional and Country-Level Maternal Mortality by Cause, 1990-2050
While progress has been made globally to reduce maternal deaths, measurement remains a challenge given …
While progress has been made globally to reduce maternal deaths, measurement remains a challenge given the many causes and frequent underreporting of maternal deaths. The authors developed a structural microsimulation model of Global Maternal Health (GMatH) for 200 countries and territories using demographic, epidemiologic, clinical and health system data synthesized from the medical literature, Civil Registration Vital Statistics systems and Demographic and Health Survey data. The model was calibrated to empirical data from 1990 to…
Calibration/Validation | Global | Health Outcomes | Evidence Synthesis | Microsimulation | Maternal/Reproductive Health | Health Systems | Clinical Care | Health/Medicine -
ArticlePublication 2022Health and Financial Risk Protection Outcomes in Economic Evaluations
Extended cost-effectiveness analysis was developed to evaluate health interventions in terms of level and distribution …
Extended cost-effectiveness analysis was developed to evaluate health interventions in terms of level and distribution of health gains and financial risk protection. This information is typically presented in a joint display format. This article develops and applies an algebraic money-metric formulation that incorporates all disaggregated outcomes and finds that ranking of health interventions is sensitive to the decision maker’s aversion to inequality across income groups and that financial risk protection gains are most important to…
Cost-Effectiveness Analysis | Global | Priority Setting/Ethics | Chronic Disease/Risk | Social Determinants | Economics/Finance | Health/Medicine -
ArticlePublication 2022Economic Evaluations of Health System Strengthening Activities
Health system strengthening (HSS) activities should accompany disease-targeting interventions in low/middle-income countries (LMICs). Economic evaluations …
Health system strengthening (HSS) activities should accompany disease-targeting interventions in low/middle-income countries (LMICs). Economic evaluations provide information on how these types of investment might best be balanced but can be challenging. This paper conducted a systematic review to evaluate how researchers address these economic evaluation challenges. The authors searches produced 1978 studies, out of which they included 36. Most studies used data from prospective trials and calculated cost-effectiveness directly from these trial inputs, rather than…
Cost-Effectiveness Analysis | Global | Health Systems | Policy/Regulation | Economics/Finance | Health/Medicine -
ArticlePublication 2022Comparative Health Systems Analysis of Differences in Catastrophic Health Expenditure
The growing burden of non-communicable diseases (NCDs) in low- and middle-income countries may have implications …
The growing burden of non-communicable diseases (NCDs) in low- and middle-income countries may have implications for health system performance in the area of financial risk protection, as measured by catastrophic health expenditure (CHE). This article compares non-communicable diseases catastrophic health expenditure to the CHE cases caused by communicable diseases across health systems to examine whether: (1) disease burden and catastrophic health expenditure are linked, (2) Catastrophic health expenditures secondary to NCDs disproportionately affect wealthier households and (3) whether the drivers…
Cost-Effectiveness Analysis | Global | Costing Methods | Evidence Synthesis | Infectious Diseases | Chronic Disease/Risk | Health Systems | Economics/Finance | Health/Medicine -
ArticlePublication 2021Health Benefit Package Design
Policymakers face difficult choices over which health interventions to publicly finance. This article presents an …
Policymakers face difficult choices over which health interventions to publicly finance. This article presents an approach to health benefits package design that accommodates explicit tradeoffs between improvements in health and provision of financial risk protection. The authors designed a mathematical optimization model to balance gains in health and financial risk protection across candidate interventions when publicly financed. The optimal subset of interventions selected for inclusion was determined with bi-criterion integer programming conditional on a budget…
Mathematical Models | Global | Priority Setting/Ethics