Blockchain-based Platform for COVID-19 Vaccine Traceability

Srinivasan Sundararajan

Over the last few weeks, several pharma companies across world have announced vaccines for COVID. The respective governments are going through rigorous testing and approval processes to roll out vaccines soon.

The massive exercise of administering vaccines to billions of people across different geographies poses various challenges. Add to this the fact that different vaccines have strict conditions for storage and handling. Also, the entire history of traceability of the vaccine should be available.

While tracking the supply chain of any commodity in general and pharmaceutical products, in particular, is always complex, the COVID-19 vaccine poses tougher challenges. The following are the current temperature sensitivity needs of various vaccine manufacturers.  

best dcaas providers in usa

The information is from publicly available sites and should not be treated as a guideline for vaccine storage.

Blockchain to the Rescue

Even before the pandemic, Blockchain with its built-in ability to provide transparency across stakeholders has been a major platform for pharmaceutical traceability. The criticality for providing COVID-19 vaccine traceability has only strengthened the cause of utilizing blockchain for the supply chain in the pharma industry.

Blockchain networks with its base attributes like de-centralized ownership of data, single version of truth across stakeholders, the ability to ensure the data ownership based on cryptography-based security, and the ability to implement and manage business rules, will be a default platform handling the traceability of COVID-19 vaccines across multiple stakeholders.

Going beyond, Blockchain will also play a major role in the Identity and Credentialing of healthcare professionals involved, as well as the Consent Management of the patients who will be administered the vaccine. With futuristic technology needs like Health Passport, Digital Twin of a Person, Blockchain goes a long way in solving the current challenges in healthcare beyond streamlining the supply chain.

GAVS Blockchain Based Prototype for COVID-19 vaccine Traceability

GAVS has created a prototype of Blockchain-based network platform for vaccine traceability to demonstrate its usability. This solution has a much larger scope for extending to various healthcare use cases.

The below is the high-level process flow of the COVID-19 vaccine trial and various stakeholders involved.

digital transformation services and solutions

Image Source – www.counterpointresearch.com

Based on the use case and the stakeholders involved. GAVS prototype first creates a consortium using a private blockchain network. For the sake of simplicity, Distributors are not mentioned, but in real life, every stakeholder will be present. Individuals who receive the vaccine from hospitals are not part of the Network at this stage. But in future, their consent can be tracked using Blockchain.

Using Azure Blockchain Service, we can create private consortium blockchain networks where each blockchain network can be limited to specific participants in the network. Only participants in the private consortium blockchain network can view and interact with the blockchain. This ensures that sensitive information about vaccines are not exposed or misused.

data center consolidation initiative services

The following smart contracts are created as part of the solution with assigned ownership to the individual stake holders.

Blockchain solution and services

A glimpse of few of the smart contracts are listed for illustration purposes.

pragma solidity ^0.5.3;

pragma experimental ABIEncoderV2; 

contract Batch {

    string  public BatchId;

    string  public ProductName;

    string  public ProductType;

    string  public TempratureMaintained;

    string  public Efficacy;

    string  public Cost;

    address public CurrentOwner;

    address public ManufacturerAddr;

    address public AirLogAddr;

    address public LandLogAddr;

    address public HospAdminAddr;

    address public HospStaffAddr;

    string[] public AirTemp = new string[](10);

    string[] public LandTemp = new string[](10);

    string[] public HospTemp = new string[](20);

    string  public receiptNoteaddr;

    constructor  (string memory _batchId, string memory _productName,  string memory _productType,  string memory _TemperatureMaintained,  string memory _Efficacy,  string memory _Cost) public {

        ManufacturerAddr = msg.sender;

        BatchId = _batchId;

        ProductName = _productName ;

        ProductType = _productType;

        TemperatureMaintained = _TemperatureMaintained;

        Efficacy = _Efficacy;

        Cost = _Cost;

    }   

    modifier onlyOwner()    {

        require (msg.sender == CurrentOwner, “Only Current Owner Can Initiate This Action”);

        _;

    }      

    function updateOwner(address _addr) onlyOwner public{

       CurrentOwner = _addr;

    }        

    function retrieveBatchDetails() view  public returns (string memory, string memory, string memory, string memory, string memory, address, address, address, address, address, string[] memory, string[] memory, string[] memory, string memory) {

        return (BatchId,ProductName,TemperatureMaintained,Efficacy,Cost,ManufacturerAddr,AirLogAddr,LandLogAddr,HospAdminAddr,HospStaffAddr,AirTemp,LandTemp,HospTemp,receiptNoteaddr);  

    }

}  

The front end (Dapp) through which the traceability of the COVID-19 vaccine can be monitored is also developed and the following screenshots show certain important data flows.

Vaccine Traceability System Login Screen

best dcaas providers in usa

Traceability view for a particular batch of Vaccine

digital transformation services and solutions

Details of vaccinated patients entered by hospital

data center consolidation initiative services

Advantages of The Solution

  • With every vaccine monitored over the blockchain, each link along the chain could keep track of the entire process, and health departments could monitor the chain as a whole and intervene, if required, to ensure proper functioning.
  • Manufacturers could track whether shipments are delivered on time to their destinations.
  • Hospitals and clinics could better manage their stocks, mitigating supply and demand constraints. Furthermore, they would get guarantees concerning vaccine authenticity and proper storage conditions.
  • Individuals would have an identical guarantee for the specific vaccine they receive.
  • Overall this technology-driven approach will help to save the lives in this critical juncture.

 Extensibility to Future Needs

Gartner’s latest hypercycle for emerging technologies highlight several new technologies and notably Health Passport. As the travelers used to travel with a physical passport pandemic has created the need for a health passport, which is more like a digital health record that passengers can carry on their phones. Ideally, it should show the passengers past exposure to diseases and the vaccine records. By properly deploying health passports, several industries can revive themselves by allowing free-flowing movement of passengers across the globe.

The above blockchain solution though meant for COVID-19 traceability can potentially extended to a health passport once the patient also becomes part of it by a wallet based authentication mechanism, at GAVS we plan to explore the health passports on Blockchain in the coming months.

About the Author –

Srini is the Technology Advisor for GAVS. He is currently focused on Healthcare Data Management Solutions for the post-pandemic Healthcare era, using the combination of Multi Modal databases, Blockchain and Data Mining. The solutions aim at Patient data sharing within Hospitals as well as across Hospitals (Healthcare Interoperability) while bringing more trust and transparency into the healthcare process using patient consent management, credentialing, and zero knowledge proofs.

GAVS’ Business Continuity & Disaster Preparedness -COVID-19

Dear Client leaders & Partners

I do hope all of you, your family and colleagues are keeping good health, as we are wading through this existential crisis of COVID 19.

This is the time for shared vulnerabilities and in all humility, we want to thank you for your business and continued trust. For us, the well being of our employees and the continuity of clients’ operations are our key focus.

I am especially inspired by my GAVS colleagues who are supporting some of the healthcare providers in NYC. The GAVS leaders truly believe that they are integral members of these institutions and it is incumbent upon them to support our Healthcare clients during these trying times.

We would like to confirm that 100% of our client operations are continuing without any interruptions and 100% of our offshore employees are successfully executing their responsibilities remotely using GAVS zDesk, Skype, collaborating through online Azure ALM Agile Portal. GAVS ZIF customers are 100% supported 24X7 through ROTA schedule & fall back mechanism as a backup.

Most of GAVS Customer Success Managers, Client Representative Leaders, and Corporate leaders have reached out to you with GAVS Business Continuity Plan and the approach that we have adopted to address the present crisis. We have put communication, governance, and rigor in place for client support and monitoring.  

GAVS is also reaching out to communities and hospitals as a part of our Corporate Social Responsibility.  

We have got some approvals from the local Chennai police authorities in Chennai to support the movement of our leaders from and to the GAVS facility and we have, through US India Strategic Partnership Forum applied for GAVS to be considered an Essential Service Provider in India.  

I have always maintained that GAVS is an IT Service concierge to all of our clients and we individually as leaders and members of GAVS are committed to our clients. We shall also ensure that our employees are safe.

Thank you,
Sumit Ganguli
GAVS Technologies

Message from Balaji Uppili, Chief Customer Success Officer:

Customer Success is all about being proactive and getting ready to address newer situations. At GAVS RITE is a key DNA and Empathy to our teams and customers is absolutely at the top. That drives us to do the right things for both our teams and customers. In this endeavor and to ensure that our teams are safe and healthy and are able to seamlessly provide support and service to our customers, we had created a task force to understand, assess and plan for events that would unfold due to this massive viral pandemic. We had created 3 broad pillars as part of the task force – How do we take care of our people – people safety first (ability to shift GAVS and customer assets to their home offices smoothly and provide adequate support to enable them to stay in touch with our customers and drive value), a continuation of services and support to customers (continue with newer mechanisms and tools of collaboration and governance) and 3rd is the adoption of new operating model (potential onboarding and collaborative situations in a hybrid model for the future as well and enabling culture for such adoption and collaboration). With these 3 key facets, the task force prepared a plan and executed it with measurable outcomes at every stage. Clear goals and empowerment to various teams enabled us to execute a seamless transition to the new model. We moved 700 assets over a course of 4 business days and create stock and contingency plans for further 50% of the workforce.      

Voice of our Product Managers and Customer Success Managers: