Evaluating scenarios of locations and capacities for vaccine storage in Nigeria

Gai, Dor Hirsh Bar; Graybill, Zachary; Voevodsky, Paule; Shittu, Ekundayo

doi:10.1016/j.vaccine.2018.04.072

Cited by 14 publications

(9 citation statements)

References 11 publications

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“…Although some studies have attempted to solve the solution for the capacity planning problem, they completely focused on a micro-level [14,21,22,23,51]. This paper attempts to determine the optimal medical capacity on a state level rather than a hospital level, based on a systematic perspective.…”

Section: Discussionmentioning

confidence: 99%

“…Yi et al [22] developed a generic simulation model to obtain steady-state hospital capacities. In order to reduce the prevalence of preventable childhood diseases in Nigeria, Gai et al [23] presented a mathematical model to determine hub locations by optimizing a shortest path, and to obtain the optimal capacity of vaccine at the hubs. Some studies have designed a questionnaire to consult with experts by using the Delphi method.…”

Section: Introductionmentioning

confidence: 99%

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An Examination of the Determination of Medical Capacity under a National Health Insurance Program

Chen¹

2019

IJERPH

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This paper examines the capacity determination factors of medical services at a national level through the analysis of a mathematical model that maximizes social welfare, which consists of the consumption of private goods and the medical capacity provided by the society. A sensitivity analysis is conducted to investigate the impact of these factors on the medical capacity provided. Furthermore, a case example based on the data provided by the government is presented to discuss the results derived from the theoretical analysis. The results of the sensitivity analysis indicate that individual disposable income, the medical expenditure for each treatment, the level of premium payments, and substitution parameters have a positive impact on medical capacity, while the medical costs and preference parameter negatively affect medical capacity. The results of the correlation analysis based on the data of the case example are consistent with the findings of the theoretical analysis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Examination of the Determination of Medical Capacity under a National Health Insurance Program

Chen¹

2019

IJERPH

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“…A first stream of papers using this methodology are those addressing strategic location and allocation decisions, and tactical inventory relocation decisions. In these papers, reported optimization methods include linear programming (Chen et al, 2014), binary integer programming (Hirsh Bar Gai et al, 2018;Lee et al, 2015a;Lim et al, 2016) and mixed integer programming (Erdogan et al, 2017;Rottkemper et al, 2011). A second stream of articles focuses on the operational decision level.…”

Section: Methodsmentioning

confidence: 99%

“…Unfortunately, insufficient supply to meet demand and national vaccine stock-outs are commonly encountered. When the supply of vaccines is insufficient, allocation rules need to be formulated that decide on the distribution of vaccines to the different storage points (Hirsh Bar Gai, Graybill, Voevodsky & Shittu, 2018;Lewis et al, 2017). One of the main reasons for national vaccine stock-outs is delays in the procurement process (Lydon et al, 2017;Yadav, 2015).…”

Section: Sourcingmentioning

confidence: 99%

“…Even when vaccines have arrived at the port of entry, it can take a significant amount of time before they are shipped to the next level in the VDC. The reason being that vaccine shipments from suppliers may be held in customs for long periods of time (Hirsh Bar Gai et al, 2018). Hence, it is clear that supply at the national level is subject to a lot of uncertainty.…”

Section: Sourcingmentioning

confidence: 99%

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Vaccine distribution chains in low- and middle-income countries: A literature review

Boeck

Decouttere

Vandaele

2020

Omega

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Access to immunization varies greatly across the world. In order to increase vaccine coverage, the required vaccines need to be able to reach the targeted population. However, in low-and middleincome countries, this often turns out to be a challenging task. This article provides a literature review on vaccine distribution chains in low-and middle-income countries and consists of two main parts. The first part elaborates on the characteristics and challenges inherent to such distribution chains. In order to obtain a complete overview, both quantitative and qualitative papers are included. In the second part, relevant operations research and operations management literature is structured according to seven classification criteria: decision level, methodology, part of the vaccine distribution chain modelled, uncertainties and characteristics covered, performance measures, real-life applicability, and countries and vaccines covered. Throughout these classifications, a comparison is made between the issues reported in practice and those investigated in the operations research and operations management literature. Based on this analysis, we identify trends and conclude that several gaps exist, providing a promising avenue for future research.

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A relax-and-fix Pareto-based algorithm for a bi-objective vaccine distribution network considering a mix-and-match strategy in pandemics

Nikoubin

Mahnam

Moslehi

2023

Applied Soft Computing

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Evaluating scenarios of locations and capacities for vaccine storage in Nigeria

Cited by 14 publications

References 11 publications

An Examination of the Determination of Medical Capacity under a National Health Insurance Program

An Examination of the Determination of Medical Capacity under a National Health Insurance Program

Vaccine distribution chains in low- and middle-income countries: A literature review

A relax-and-fix Pareto-based algorithm for a bi-objective vaccine distribution network considering a mix-and-match strategy in pandemics

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