Resources Repository
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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 | Science/Technology | Asia & Pacific | Health Outcomes | Dynamic Transmission | Microsimulation | Infectious Diseases | Global Governance | Economics/Finance | Health/Medicine | Sub-Saharan Africa | Middle East & North Africa | Latin America & Caribbean -
ArticlePublication 2020Interpreting COVID-19 Test Results: A Bayesian Approach
This article considers the following question with respect to interpreting the results of polymerase chain reaction …
This article considers the following question with respect to interpreting the results of polymerase chain reaction (PCR) assays from nasal and pharyngeal swabs for COVID-19 to inform clinical decision making: "While a positive result in an acutely ill patient is straightforward, how should physicians interpret negative tests in patients with suspected COVID-19 infection?" Using an assumption of near-perfect specificity of PCR assays for COVID-19, the authors acknowledge the uncertainty of test sensitivity. They consider two clinical scenarios…
Test Performance | Science/Technology | Global | Probability/Bayes | Infectious Diseases | Health/Medicine -
ArticlePublication 2018Cost-Effectiveness of Strategies to Prevent Road Traffic Injuries in Eastern Sub-Saharan Africa and Southeast Asia: New Results from WHO-CHOICE
The authors applied a generalized cost-effectiveness analysis (GCEA) approach, applying a null reference case, in …
The authors applied a generalized cost-effectiveness analysis (GCEA) approach, applying a null reference case, in which the effects of currently implemented interventions were subtracted from current rates of burden, in order to identify the most efficient package of interventions that could be applied to Road Traffic Injuries (RTIs). They used a population model to estimate costs and effectiveness of interventions over a 100 year time frame in eastern sub-Saharan Africa and Southeast Asia. All heath…
State-Transition | Science/Technology | Asia & Pacific | Cost-Effectiveness Analysis | Injuries/Accidents | Policy/Regulation | Culture/Society | Sub-Saharan Africa -
ArticlePublication 2018Equity Impact Vaccines May Have on Averting Deaths and Medical Impoverishment
In this analysis, authors estimated the number of deaths averted and the number of cases …
In this analysis, authors estimated the number of deaths averted and the number of cases of medical impoverishment averted of ten antigens and their corresponding vaccines across income quintiles for forty-one low- and middle-income countries. The study found that vaccines administered between 2016 and 2030 would prevent 36 million deaths. Vaccines will have the greatest impact on reducing cases of poverty caused by hepatitis B, helping an estimated 14 million people avoid medical impoverishment. An…
Mathematical Models | Science/Technology | Asia & Pacific | Priority Setting/Ethics | Costing Methods | Health Outcomes | Cost-Effectiveness Analysis | Infectious Diseases | Child/Nutrition | Global Governance | Economics/Finance | Health/Medicine | Sub-Saharan Africa | Middle East & North Africa -
ArticlePublication 2017Estimating the Fitness Cost and Benefit of Cefixime Resistance in Neisseria Gonorrhoeae
Gonorrhoea is one of the most common bacterial sexually transmitted infections in England, and more …
Gonorrhoea is one of the most common bacterial sexually transmitted infections in England, and more than half of annual infections occur in men who have sex with men (MSM). As the bacterium has developed resistance to each first-line antibiotic in turn, an improved understanding is needed of fitness benefits and costs of antibiotic resistance to inform control policy and planning. The authors developed a stochastic compartmental model representing the natural history and transmission of cefixime-sensitive…
Risk Analysis | Science/Technology | Global | Dynamic Transmission | Decision Analysis | Infectious Diseases | Health Systems | Policy/Regulation | Government/Law | Health/Medicine -
ArticlePublication 2016Maternal-Related Deaths and Impoverishment among Adolescent Girls in India and Niger
This article, published in BMJ Open, examined the distribution of maternal deaths and impoverishment among …
This article, published in BMJ Open, examined the distribution of maternal deaths and impoverishment among adolescent girls across socioeconomic groups in Niger and India, which have the largest fertility rate, and number of maternal deaths, respectively. Results showed that in Niger and India, the poorer adolescents had a larger number of maternal deaths compared to the richer. Impoverishment occurred mostly among the richer adolescents in Niger and among the poorer adolescents in India. Increasing educational…
Mathematical Models | Education/Labor | Asia & Pacific | Priority Setting/Ethics | Costing Methods | Health Outcomes | Cost-Effectiveness Analysis | Maternal/Reproductive Health | Social Determinants | Health Systems | Economics/Finance | Health/Medicine | Sub-Saharan Africa -
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…
Mathematical Models | Science/Technology | Global | Dynamic Transmission | Dynamic Simulation | Infectious Diseases | Health Systems | Policy/Regulation | Health/Medicine -
ArticlePublication 2008Mathematical Models of Cervical Cancer Prevention in the Asia Pacific Region
This article reports on a model-based approach to estimate averted cervical cancer cases and deaths, …
This article reports on a model-based approach to estimate averted cervical cancer cases and deaths, disability-adjusted life years (DALYs) and incremental cost-effectiveness ratios (I$/DALY averted) for vaccination of young adolescent girls against human papillomavirus (HPV) types 16 and 18. The authors used population-based and epidemiologic data for 25 countries in Asia (22 GAVI-Alliance eligible countries, Thailand, China and Japan). They found that an absolute reduction in lifetime cancer risk varied across countries, depending on incidence,…
Mathematical Models | Science/Technology | Asia & Pacific | Microsimulation | Calibration/Validation | Cost-Effectiveness Analysis | Infectious Diseases | Chronic Disease/Risk | Health Systems | Economics/Finance | Health/Medicine