Resources Repository
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ArticlePublication 2017Estimated Economic Impact of Vaccinations in 73 LMIC, 2001-2020
This analysis estimates the economic impact likely to be achieved by efforts to vaccinate against 10 …
This analysis estimates the economic impact likely to be achieved by efforts to vaccinate against 10 vaccine-preventable diseases between 2001 and 2020 in 73 low- and middle-income countries largely supported by Gavi, the Vaccine Alliance. The authors used health impact models to estimate the economic impact of achieving forecasted coverages for vaccination against Haemophilus influenzae type b, hepatitis B, human papillomavirus, Japanese encephalitis, measles, Neisseria meningitidis serogroup A, rotavirus, rubella, Streptococcus pneumoniae and yellow fever. In…
Dynamic Transmission | Health Outcomes | Sub-Saharan Africa | Infectious Diseases | State-Transition | Microsimulation | Cost-Effectiveness Analysis | Child/Nutrition | Health Systems | Economics/Finance | Health/Medicine | Middle East & North Africa | Latin America & Caribbean | Asia & Pacific -
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…
Calibration/Validation | Dynamic Transmission | Global | Infectious Diseases | Dynamic Simulation | Health Systems | Health/Medicine -
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…
Dynamic Transmission | Health Outcomes | Sub-Saharan Africa | Infectious Diseases | Mathematical Models | State-Transition | Microsimulation | Global Governance | Economics/Finance | Health/Medicine | Science/Technology | Middle East & North 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 Transmission | Global | Policy/Regulation | Infectious Diseases | Mathematical Models | Dynamic Simulation | Health Systems | Health/Medicine | Science/Technology -
ArticlePublication 2011Health and Economic Impact of HPV 16/18 Vaccination and Cervical Cancer Screening in Eastern Africa
In this article the authors use epidemiologic data from Kenya, Mozambique, Tanzania, Uganda, and Zimbabwe …
In this article the authors use epidemiologic data from Kenya, Mozambique, Tanzania, Uganda, and Zimbabwe to develop models of HPV-related infection and disease. For each country, they assessed HPV vaccination of girls before age 12 followed by screening with HPV DNA testing once, twice, or three times per lifetime (at ages 35, 40, 45). For women over age 30, they assessed only screening (with HPV DNA testing up to three times per lifetime or VIA…
Calibration/Validation | Sub-Saharan Africa | Chronic Disease/Risk | Infectious Diseases | Microsimulation | Cost-Effectiveness Analysis | Clinical Care | Economics/Finance | Health/Medicine | Science/Technology -
ArticlePublication 2008Cost-Effectiveness of Rapid Point-of-Care Prenatal Syphilis Screening in Sub-Saharan Africa
This paper investigates the cost-effectiveness of using rapid point-of-care tests for prenatal syphilis screening among …
This paper investigates the cost-effectiveness of using rapid point-of-care tests for prenatal syphilis screening among pregnant women in sub-Saharan Africa, a region with syphilis prevalence rates as high as 17%, and where traditional multi-test screening methods have been challenging to implement. Focusing on newly available rapid point-of-care screening tests, strategies differed by the initial test [rapid plasma reagin (RPR), immunochromographic strip (ICS)], need for confirmation with Treponema pallidum hemagglutination assay, and number of visits required.…
Test Performance | Sub-Saharan Africa | Infectious Diseases | Costing Methods | Mathematical Models | Cost-Effectiveness Analysis | Technology Assessment | Maternal/Reproductive Health | Clinical Care | Health/Medicine -
ArticlePublication 2023Effects of Public Financing of Essential Maternal and Child Health Interventions Across Wealth Quintiles in Nigeria: An Extended Cost-Effectiveness Analysis
This study evaluates the potential health and financial risk protection benefits of public financing for …
This study evaluates the potential health and financial risk protection benefits of public financing for maternal, newborn, and child health (MNCH) interventions in Nigeria, focusing on different wealth quintiles. Employing extended cost-effectiveness analysis, the research assesses the impact of a policy ensuring zero out-of-pocket costs for 18 essential MNCH services. Three scenarios were modeled: status quo, uniform scale-up, and pro-poor scale-up. Findings suggest that a 5% increase in coverage for all quintiles could prevent significant…
Health Outcomes | Sub-Saharan Africa | Policy/Regulation | Mathematical Models | Cost-Effectiveness Analysis | Maternal/Reproductive Health | Health/Medicine -
ArticlePublication 2021New Microsimulation Models to Inform Cervical Cancer Control
Health decision models consider the lifetime natural history of human papillomavirus (HPV) infection and pathogenesis …
Health decision models consider the lifetime natural history of human papillomavirus (HPV) infection and pathogenesis of cervical cancer, and estimate the long-term impact of preventive interventions. We propose a new health decision modeling framework that de-emphasizes previously used cytologic-colposcopic-histologic diagnoses, which are subjective and lack reproducibility, relying instead on HPV type and duration of infection as the major determinants of model transition probabilities. We posit that new model health states and corollary transitions are universal,…
Calibration/Validation | Global | Infectious Diseases | Mathematical Models | Microsimulation | Decision Analysis | Cost-Effectiveness Analysis -
ArticlePublication 2019Estimating the Total Incidence of Global Childhood Cancer: A Simulation-Based Analysis
This study describes the development of a microsimulation model to simulate childhood cancer incidence for …
This study describes the development of a microsimulation model to simulate childhood cancer incidence for 200 countries/territories, taking into account trends in population growth and urbanicity, geographical variation in cancer incidence, and health system barriers to access and referral that contribute to underdiagnosis. The model was calibrated to publicly available cancer registry data, and the total incidence of childhood cancer (diagnosed and undiagnosed) was estimated for each country in 2015 and projections made to 2030.…
Health Outcomes | Global | Chronic Disease/Risk | Microsimulation | Child/Nutrition | Health Systems