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![Page 1: CLICK TO ADD TITLE [DATE][SPEAKERS NAMES] The 6th Global Health Supply Chain Summit November 18 -20, 2013 Addis Ababa, Ethiopia HERMES Computational Simulation.](https://reader036.fdocuments.net/reader036/viewer/2022070306/5516e44e550346fe558b4676/html5/thumbnails/1.jpg)
CLICK TO ADD TITLE
[DATE][SPEAKERS NAMES]
The 6th Global Health Supply Chain Summit
November 18 -20, 2013Addis Ababa, Ethiopia
HERMES Computational Simulation Modeling to Improve Vaccine Supply Chain Operations in Two
West African Countries: Niger and Benin Bryan A. Norman
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HERMES Team
Tina-Marie Assi, PhDFormer Co-Coordinator
Rachel B. Slayton, PhDFormer Co-Coordinator
Shawn T. Brown, PhDTechnical Lead
Joel S. Welling, PhDDeveloper
Bruce Y. Lee, MD, MBAScientific Lead
Bryan A. Norman, PhDIndustrial Engineering
Jayant Rajgopal, PhDIndustrial Engineering
Diana L. Connor, MPHCo-Coordinator
Sheng-I Chen, PhDIndustrial Engineering
Angela R. Wateska, MPHCo-Coordinator
Brigid E. Cakouros, MPHSenior Analyst
Yu-Ting Weng, MSDeveloper
Michelle M. Schmitz,BAAnalyst
Jim Leonard
Developer
Leila A. Haidari, BSAnalyst
Leslie E. Mueller, BSAnalyst
Erin G. Claypool, PhD Industrial Engineering
Proma Paul, MHSSenior Analyst
Veena Karir, PharmD, MSSenior Analyst
Roslyn J. Phillips, MPHSenior Analyst
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• HERMES Overview• Examples of In-Country
Work• Sample studies• Summary and
Discussion
Overview
For more information visit- http://hermes.psc.edu
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Air and Space Travel and Exploration
Transportation
Natural Resource and Energy Exploration
Finance and Investment
Sports
Military/Defense
Modeling Is Widely Used
For more information visit- http://hermes.psc.edu
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HERMES Vision
For more information visit- http://hermes.psc.edu
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HERMES can address…
• Impact of introducing new technology – e.g., vaccines, storage, and monitoring
• Characteristics of vaccines and other technologies– e.g., vaccine vial size, vaccine thermostability, cold device
capacity• Configuration and operations of the supply chain
– e.g., storage, shipping frequency, personnel, ordering policy• Effects of differing conditions/circumstances
– e.g., power outages, delays, inclement weather, limited access• Investment or allocation of resources
– e.g., adding refrigerators vs. increasing transport frequency• Optimizing vaccine delivery
– e.g., minimize cost, cost per outcome, maximize immunizations
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Discrete Event Simulation
For more information visit- http://hermes.psc.edu
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Service Delivery Location
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Steps to Model Supply Chains
• Identify purpose of simulation
– Questions to address
– Perspective of user
• Determine level of detail required in the simulation model
– Less detail to address general, simpler questions
– More detail to address more complex questions
For more information visit- http://hermes.psc.edu
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Steps to Model Supply Chains
• Gather and input supply chain data into HERMES
– Evaluate the data that is available.
– Less data less detailed simulation model
– More data more detailed simulation model
• Decision maker can directly run HERMES on any laptop computer
For more information visit- http://hermes.psc.edu
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HERMES GUI
• Simplifies
– Data input
– Running models
– Evaluating different scenarios
– Identifying bottlenecks
• Seeking Beta testers for the HERMES GUI for early 2014
For more information visit- http://hermes.psc.edu
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• HERMES Overview• Examples of In-
Country Work• Sample studies• Summary and
Discussion
Overview
For more information visit- http://hermes.psc.edu
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Examples of In-Country Work
For more information visit- http://hermes.psc.edu
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• HERMES Overview• Examples of In-Country
Work• Sample studies• Summary and
Discussion
Overview
For more information visit- http://hermes.psc.edu
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Niger Supply Chain
1 Month42 District Stores (Chest Refrigerators and Freezers)
Serum Institute Sanofi Aventis
Regional Store
600+ Clinics (Small Refrigerators and/or Freezers)600+ Clinics
Regional Store
1 Mon
th
Regional Store
Regional Store
Regional Store
Regional Store
Regional Store
Central Store
For more information visit- http://hermes.psc.edu
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Vaccine Availability
Vaccine Availability (%) Vaccine Availability (%)
Vaccine Availability (%) Vaccine Availability (%)
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For more information visit- http://hermes.psc.edu
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Truck Capacity Utilization
10-dose measles vaccine vial size5-dose measles vaccine vial size2-dose measles vaccine vial size1-dose measles vaccine vial size
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10-dose measles vaccine vial size5-dose measles vaccine vial size2-dose measles vaccine vial size1-dose measles vaccine vial size
Storage Capacity Utilization
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Measles Vaccine Vial Size Scenario 10 doses per vial 5 doses per vial 2 doses per vial 1 doses per vial
100% Target Population SizeBacille-Calmette-Guerin Tuberculosis (BCG)
79% 79% 78% 76%
Diptheria-tetanus-pertussis-hepatitis B-Haemophilus influenza type B (DTP-HepB-Hib)
84% 84% 82% 80%
Measles 90% 87% 86% 80%Oral polio (OPV) 80% 80% 78% 76%Tetanus toxoid (TT) 84% 84% 83% 80%Yellow fever (YF) 79% 79% 78% 76%80% Target Population SizeBCG 84% 85% 85% 84%DTP-HepB-Hib 86% 86% 86% 84%Measles 94% 92% 89% 84%OPV 80% 80% 80% 79%TT 86% 86% 86% 84%YF 84% 85% 85% 84%60% Target Population SizeBCG 81% 81% 81% 80%DTP-HepB-Hib 91% 91% 91% 89%Measles 93% 91% 91% 90%OPV 82% 82% 82% 82%TT 90% 90% 90% 89%YF 81% 81% 81% 80%
Vaccine Availability by Vaccine
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Cost per Dose by Arrival Rate
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Optimal Vial Size
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Benin: The Problem
• The Benin supply chain may not be effectively getting vaccines to the population.– At least 15% of children in Benin are not receiving
full vaccinations (as measured by estimated DTP3 coverage).1
– Impending new vaccine introduction (e.g., rotavirus vaccine) may exacerbate this problem.
• The Benin vaccine supply chain may also cost more to operate than it should (not completely efficient).
1 http://www.who.int/immunization_monitoring/data/ben.pdf - 2011 Government and WHO-UNICEF estimate.
For more information visit- http://hermes.psc.edu
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Benin: Objectives
• Evaluate the current Benin vaccine supply chain:– Identify vulnerabilities (bottlenecks)– Calculate operating costs (storage, transport, labor, and
building)
• Assess Benin vaccine supply chain’s ability to handle new vaccine introduction.
• Identify an alternate, more efficient vaccine supply chain design.
• Establish a blueprint for redesign.
• Build a business case to change the system.
• Determine if costs could be lowered and coverage increased from the current system.
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Approach: HERMES Modeling Each Scenario
Data on Benin Vaccine Supply Chain• 2010 Cold Chain Equipment Management (CCEM) assessment• Pilot 2012 EVM+HERMES • 2008 Comprehensive Multiyear Plan (cMYP)•Personal communications with Benin Ministry of Health (MoH), WHO, UNICEF, Project OPTIMIZE, and other key stakeholders
Measure Operating Costs
Make Additions to Relieve Bottlenecks
Run Simulation
Measure Vaccine Availability
Detailed Simulation Model of the Benin Vaccine Supply Chain
Run Simulation
Measure Operating CostsMeasure Vaccine Availability
Measure Capital Expenditure
For more information visit- http://hermes.psc.edu
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Current System: Not Completely Effective or Efficient
Vaccine availability: 93% (71% after rotavirus introduction)Total annual operating costs: $1,113,954 ($1,117,494 after rotavirus introduction)
Logistics cost per dose: $0.23 ($0.26 after rotavirus introduction)
* Current Bottlenecks: Storage at National Store and transport between all levels
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Which Redesign is the Best Option?
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Capital Expenditures Required to Achieve Each Design Alternative that will Accommodate
Rotavirus Introduction
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ZS + Truck Loops: Lowest Capital Expenditures and Operating Costs
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ZS + Truck Loops: Lowest Logistics Cost per Dose Administered
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ZS+Truck Loops: Over Half a Million USD in Cost Savings after 5 Years
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Synergy of Two Changes Creates Savings
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• Zone Sanitaire plus 4 x 4 Truck Loops at Lowest Level is clear choice.
Lower capital expenditures
Lower operating costs
After four years over half-million in cost savings
• Combination of Zone Sanitaire and Truck Loops leads to a synergistic effect.
Conclusions
For more information visit- http://hermes.psc.edu
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• HERMES Overview• Examples of In-Country
Work• Sample studies• Summary and
Discussion
Overview
For more information visit- http://hermes.psc.edu
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Summary and Discussion
• HERMES can rapidly create a simulation model of any supply chain
• Serve as a virtual laboratory to help a wide variety of vaccine decision makers answer any number of questions
• Already implemented in multiple countries
For more information visit- http://hermes.psc.edu
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Looking To The Future
• Over the next ten years most GAVI countries are expanding their vaccines – MenAfriVac®, Rotavirus, PCV-13, others
• Many new vaccines are relatively large– Even more burden on the vaccine cold chain
• Higher coverage rate targets for current and new vaccines
• Cost effective distribution is critical to achieve coverage targets
For more information visit- http://hermes.psc.edu
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Acknowledgements
• Funded by the Bill and Melinda Gates Foundation and the U.S. National Institutes of Health
• Valued collaborators include: World Health Organization (WHO), UNICEF, PATH, Agencie de Medecine Preventive (AMP)
For more information visit- http://hermes.psc.edu